US3286028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tracing device
Assignee: General Precision Inc
•
Filing: 1963-01-25
•
Granted: 1966-11-15
•
Expires: 1983-01-25
Abstract
No abstract record available.
Inventors
- 👤 John W Gray
- 👤 Arvid W Jacobson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:32
CPC Classifications
G; G08; G08C; G08C21/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A TRACING DEVICE INCLUDING A HAND-PROPELLED STYLUS FOR PROVIDING TWO VARYING VOLTAGES THE INSTANTANEOUS VALUES OF WHICH CORRESPOND TO THE INSTANTANEOUS COORDINATE LOCATION OF THE TRACING STYLUS COMPRISING, AN INTERLACED WIRE MESH HAVING A PLURALITY OF HORIZONTAL AND VERTICAL CONDUCTORS INSULATED FROM EACH OTHER, EACH OF SAID CONDUCTORS HAVING A PLURALITY OF SPACED EXPOSED UNINSULATED AREAS ON ONE SURFACE OF THE MESH, FIRST RESISTIVE MEANS ELECTRICALLY INTERCONNECTING THE HORIZONTAL CONDUCTORS, SECOND RESISTIVE MEANS ELECTRICALLY INTERCONNECTING THE VERTICAL CONDUCTORS, FIRST MEANS FOR APPLYING A VOLTAGE TO THE FIRST RESISTIVE MEANS, SECOND MEANS FOR APPLYING A VOLTAGE TO THE SECOND RESISTIVE MEANS, AND MEANS ASSOCIATED WITH SAID STYLUS FOR SIMULTANEOUSLY CONTACTING ONE EXPOSED AREA OF AT LEAST ONE HORIZONTAL AND ONE VERTICAL CONDUCTOR TO ESTABLISH CIRCUIT CONNECTIONS FOR PROVIDING TWO VOLTAGES WHICH CORRESPOND TO THE COORDINATE LOCATION OF THE STYLUS AND ITS ASSOCIATED MEANS.
Claim 2
Dependent Claim
142 words
A TRACING DEVICE INCLUDING A HAND-PROPELLED STYLUS FOR PROVIDING TWO VARYING VOLTAGES THE INSTANTANEOUS VALUES OF WHICH CORRESPOND TO THE INSTANTANEOUS COORDINATE LOCATION OF THE TRACING STYLUS COMPRISING, AN INTERLACED WIRE MESH HAVING A PLURALITY OF HORIZONTAL AND VERTICAL CONDUCTORS INSULATED FROM EACH OTHER, EACH OF SAID CONDUCTORS HAVING A PLURALITY OF SPACED EXPOSED UNINSULATED AREAS ON ONE SURFACE OF THE MESH, FIRST RESISTIVE MEANS ELECTRICALLY INTERCONNECTING THE HORIZONTAL CONDUCTORS, SECOND RESISTIVE MEANS ELECTRICALLY INTERCONNECTING THE VERTICAL CONDUCTORS, FIRST MEANS FOR APPLYING A VOLTAGE TO THE FIRST RESISTIVE MEANS, SECOND MEANS FOR APPLYING A VOLTAGE TO THE SECOND RESISTIVE MEANS, AND MEANS ASSOCIATED WITH SAID STYLUS FOR SIMULTANEOUSLY CONTACTING ONE EXPOSED AREA OF AT LEAST ONE HORIZONTAL AND ONE VERTICAL CONDUCTOR TO ESTABLISH CIRCUIT CONNECTIONS FOR PROVIDING TWO VOLTAGES WHICH CORRESPOND TO THE COORDINATE LOCATION OF THE STYLUS AND ITS ASSOCIATED MEANS.
References Cited (Backward Citations)
US2168049A
Cited
US2704305A
Cited
US2907824A
Cited
US2977672A
Cited
US3064332A
Cited
US3128458A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |