US3291994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sprocket signal generator with novel aperture arrangement for precise timing of signals
Assignee: Unisys Corp
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Filing: 1964-11-16
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Granted: 1966-12-13
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Expires: 1984-11-16
Abstract
No abstract record available.
Inventors
- 👤 Albert J Romeo
- 👤 Sekse Torkjell
- 👤 Ernesto G Sevilla
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:15
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/01; G06K7/016; G06K7/0163
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A SPROCKET SIGNAL GENERATOR TO BE USED WITH A RECORD MEDIUM HAVING SPROCKET HOLES THEREIN COMPRISING: A READING STATION; FIRST MEANS IN SAID READING STATION FOR GENERATING FIRST SPROCKET SIGNAL IN RESPONSE TO A FIRST SPROCKET HOLE IN A RECORD MEDIUM PASSING THROUGH SAID READING STATION; SECOND MEANS IN SAID READING STATION FOR GENERATING A SECOND SPROCKET SIGNAL IN RESPONSE TO A SECOND AND SEQUENTIALLY POSITIONED SPROCKET HOLE IN SAID RECORD MEDIUM; SAID FIRST AND SECOND SIGNALS HAVING PARTIALLY COINCIDENT PORTIONS; AND MEANS RESPONSIVE ONLY TO SAID COINCIDENCE PORTIONS OF SAID FIRST AND SECOND SIGNALS FOR PRODUCING A SINGLE SPROCKET PULSE.
Claim 2
Dependent Claim
101 words
A SPROCKET SIGNAL GENERATOR TO BE USED WITH A RECORD MEDIUM HAVING SPROCKET HOLES THEREIN COMPRISING: A READING STATION; FIRST MEANS IN SAID READING STATION FOR GENERATING FIRST SPROCKET SIGNAL IN RESPONSE TO A FIRST SPROCKET HOLE IN A RECORD MEDIUM PASSING THROUGH SAID READING STATION; SECOND MEANS IN SAID READING STATION FOR GENERATING A SECOND SPROCKET SIGNAL IN RESPONSE TO A SECOND AND SEQUENTIALLY POSITIONED SPROCKET HOLE IN SAID RECORD MEDIUM; SAID FIRST AND SECOND SIGNALS HAVING PARTIALLY COINCIDENT PORTIONS; AND MEANS RESPONSIVE ONLY TO SAID COINCIDENCE PORTIONS OF SAID FIRST AND SECOND SIGNALS FOR PRODUCING A SINGLE SPROCKET PULSE.
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) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |