US3182291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Utensil for writing and simultaneously recognizing the written symbols
Assignee: International Business Machines Corp
•
Filing: 1961-08-25
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Granted: 1965-05-04
•
Expires: 1981-08-25
Abstract
No abstract record available.
Inventors
- 👤 Ernie G Nassimbene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:36
CPC Classifications
G; G06; G06V; G06V10/00; G06V10/10; G06V10/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
ARRANGEMENT FOR INDICATING WRITTEN SYMBOLS AT A POINT REMOTE FROM WHERE THEY ARE BEING WRITTEN COMPRISING THE COMBINATION OF A MEMBER CONTAINING A SOURCE OF LIGHT, WITH A WRITING UTENSIL HAVING A WRITING POINT, A LIGHTSENSITIVE ELEMENT IN AN AREA EXTERIORLY ADJACENT TO SAID POINT, AND A CIRCUIT CONTAINING SAID LIGHT-SENSITIVE ELEMENT FOR DEVELOPING VOLTAGES VARYING IN RESPONSE TO VARIATIONS IN THE DEGREE OF ILLUMINATION OF SAID LIGHT-SENSITIVE ELEMENT BY SAID SOURCE OF LIGHT.
Claim 2
Dependent Claim
74 words
ARRANGEMENT FOR INDICATING WRITTEN SYMBOLS AT A POINT REMOTE FROM WHERE THEY ARE BEING WRITTEN COMPRISING THE COMBINATION OF A MEMBER CONTAINING A SOURCE OF LIGHT, WITH A WRITING UTENSIL HAVING A WRITING POINT, A LIGHTSENSITIVE ELEMENT IN AN AREA EXTERIORLY ADJACENT TO SAID POINT, AND A CIRCUIT CONTAINING SAID LIGHT-SENSITIVE ELEMENT FOR DEVELOPING VOLTAGES VARYING IN RESPONSE TO VARIATIONS IN THE DEGREE OF ILLUMINATION OF SAID LIGHT-SENSITIVE ELEMENT BY SAID SOURCE OF LIGHT.
References Cited (Backward Citations)
US2420716A
Cited
US3078373A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-03 | 1968-11-02 | 1969-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-03 | 1972-11-02 | 1973-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-03 | 1976-11-02 | 1977-05-04 | $7700.00 | Window Closed / Lapsed |