US3194883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Facsimile system with local contrast control
Assignee: TI Gotham Inc
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Filing: 1961-05-16
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Granted: 1965-07-13
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Expires: 1981-05-16
Abstract
No abstract record available.
Inventors
- 👤 Ross Austin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:45
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/46; H04N1/56; H04N1/58; H04N1/40; H04N1/409; H04N1/4092
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
FACSIMILE APPARATUS COMPRISING, MEANS TO ILLUMINATE AN AREA OF A TONAL SUBJECT, MEANS TO DERIVE AN ELECTRIC SIGNAL FROM A SPOT DISPOSED ON SAID SUBJECT WITHIN SAID AREA AND DIMENSIONALLY LESS BY AT LEAST TWENTY TIMES THAN SAID AREA, SAID SIGNAL BEING REPRESENTATIVE OF TONAL INFORMATION IN SAID SPOT, MEANS TO DERIVE FROM SAID AREA AT LEAST ONE ELECTRIC OUTPUT REPRESENTATIVE OF TONAL INFORMATION IN SAID AREA, AND MEANS TO MODIFY SAID SIGNAL AS AT LEAST A PARTIAL FUNCTION OF SAID OUTPUT.
Claim 2
Dependent Claim
82 words
FACSIMILE APPARATUS COMPRISING, MEANS TO ILLUMINATE AN AREA OF A TONAL SUBJECT, MEANS TO DERIVE AN ELECTRIC SIGNAL FROM A SPOT DISPOSED ON SAID SUBJECT WITHIN SAID AREA AND DIMENSIONALLY LESS BY AT LEAST TWENTY TIMES THAN SAID AREA, SAID SIGNAL BEING REPRESENTATIVE OF TONAL INFORMATION IN SAID SPOT, MEANS TO DERIVE FROM SAID AREA AT LEAST ONE ELECTRIC OUTPUT REPRESENTATIVE OF TONAL INFORMATION IN SAID AREA, AND MEANS TO MODIFY SAID SIGNAL AS AT LEAST A PARTIAL FUNCTION OF SAID OUTPUT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |