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Early Device for Tracking Objects with a Pen

This 1962 patent describes an early system for tracing the path of an object using a pen-like stylus that records its movement on a surface.

Granted 1962ExpiredExpired 1979Owned by IndividualInvented by Grandjean Arthur

Original patent title: “Tracing device

Plain-English explanation by SahiLast reviewed · June 13, 2026

This 1962 patent describes an early system for tracing the path of an object using a pen-like stylus that records its movement on a surface. Granted to Individual in 1962 with 31 forward citations, and it is now in the public domain.

Key facts

Patent numberUS 3055113
StatusExpired
FieldConsumer Electronics
AssigneeIndividual
InventorGrandjean Arthur
Filed1959
Granted1962
Expires1979 (expired)
Times cited31
LitigationNone on record
Value · $10K$31KMinimal

Coverage

What does this patent actually cover?

The patent describes a tracing device that allows a user to track the movement of an object. A pen or stylus is attached to the object, and as the object moves, the pen draws its path on a surface. The device includes a mechanism to ensure the pen maintains contact with the surface and records the movement accurately. This could be used to map out the trajectory of a moving item.

The gap

What does this patent NOT cover?

  • Digital or electronic tracing systems
  • Devices that do not physically mark a surface
  • Automated tracking without a physical stylus
  • Systems for tracking airborne or underwater objects
  • Methods of data storage or analysis of traced paths

These exclusions are unique to PatentBrief — derived from the actual claim language, not patent-office boilerplate.

What made this novel

The innovation lies in its purely mechanical design to translate physical movement into a traceable line on a surface, offering a direct, analog method for recording paths without complex electronics.

The Patent Drawing

Representative patent drawing for Tracing device (US 3055113)
Representative figure · US 3055113All figures on Google Patents →
Tracing device(Primary claim)mechanicalconsumer electronics

Schematic visualization of the patent's claim structure. Hand-drawn diagrams in progress for each landmark patent.

Where you've seen this

Real-world examples

01

Early mechanical plotters

02

Analog motion recording devices

Why it matters

The bigger picture

This patent represents an early, mechanical approach to capturing motion data. While rudimentary by today's standards, it highlights the fundamental desire to record and analyze movement, a concept that underpins modern motion capture and GPS technologies.

Filed

July 23, 1959

Granted

September 25, 1962

Market context

Who's building on this

Companies in this space

Given the age and mechanical nature of this patent, it's unlikely that specific modern companies are directly building on this exact technology. However, the foundational concept of translating physical motion into recorded data is a precursor to modern digital tracking and mapping systems.

Market impact

This patent likely had minimal direct market impact due to its early and mechanical nature. It represents a conceptual step in the evolution of tracking and recording technologies rather than a product that defined a market.

Claim 1 — Plain English

What this patent covers

The patent describes a tracing device that allows a user to track the movement of an object. A pen or stylus is attached to the object, and as the object moves, the pen draws its path on a surface. The device includes a mechanism to ensure the pen maintains contact with the surface and records the movement accurately. This could be used to map out the trajectory of a moving item.

The clever bit

The innovation lies in its purely mechanical design to translate physical movement into a traceable line on a surface, offering a direct, analog method for recording paths without complex electronics.

What it does not cover

  • Digital or electronic tracing systems
  • Devices that do not physically mark a surface
  • Automated tracking without a physical stylus
  • Systems for tracking airborne or underwater objects
  • Methods of data storage or analysis of traced paths

Patent Journey

From filing to expiry

PatentBrief Score

Impact Score

Early stage

Citation count

30/40

Moderately cited

Claim breadth

0/20

Narrow claimsclaimsThe numbered statements at the end of a patent that legally define what the inventor owns.Read more →

Recency

0/20

Older than 20 years

Assignee scale

0/20

Independent or smaller assigneeassigneeThe entity that owns the patent — usually the inventor's employer or a company.Read more →

PatentBrief Impact Score — based on citation count, claim breadth, recency, and assignee scale. Not a legal assessment.

Heuristic Value Estimate

What this patent might be worth

Minimal

$10K$31K

Midpoint $19K · expired or expiring · industry ×0.9

Adjust inputs →

Heuristic only — blends forward/backward citation counts, claim scope, time remaining, litigation history, and CPC-derived industry baseline. Real valuations need a professional appraisal.

Claim text not yet imported for this patent.

Concepts involved

ClaimPrior artNon-obviousnessNoveltySpecificationAssigneePatent term

Citations

Patent lineage

Cites earlier patents

6

earlier patents this invention cites as foundations

View prior art →

Cited by later patents

31

later patents that build on this invention

View patents →

Cite this patent

Arthur, G. (1962). Early Device for Tracking Objects with a Pen (U.S. Patent No. 3,055,113). U.S. Patent and Trademark Office. https://patentbrief.org/patent/us/3055113/etch-a-sketch

Auto-generated from the patent record. Double-check author order and the issue date against the official USPTO document before submitting.

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Common Questions

Frequently Asked Questions

What does Early Device for Tracking Objects with a Pen cover?

This 1962 patent describes an early system for tracing the path of an object using a pen-like stylus that records its movement on a surface.

Who owns patent US 3055113?

Individual owns this patent, granted in 1962.

When does this patent expire?

This patent has expired and is now in the public domain — anyone can use the invention freely.

What is patent US 3055113 cited by?

This patent has been cited by 31 later patents that build on its ideas.

What problem does this patent solve?

This patent represents an early, mechanical approach to capturing motion data. While rudimentary by today's standards, it highlights the fundamental desire to record and analyze movement, a concept that underpins modern motion capture and GPS technologies.

What does this patent NOT cover?

Digital or electronic tracing systems

Same assignee

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Last reviewed: June 13, 2026 · PatentBrief is not a law firm and this is not legal advice.