US3671112A
Expired / Lapsed
US
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Reference time scale application to high speed film at high pulse repetition rates
Assignee: United States Department of the Air Force
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Filing: 1971-03-18
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Granted: 1972-06-20
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Expires: 1991-03-18
Abstract
Abstract AN APPARATUS FOR APPLYING A REFERENCE TIME SCALE TO HIGH SPEEDFILM UTILIZING A NEON TIMING LIGHT SOURCE, A TIMING SIGNAL GENERATOR AND A TRANSMISSION LINE TO CONNECT THE GENERATOR TO THE LIGHT SOURCE. TIMING PULSES HAV- ING FAST RISE AND FALL TIMES ARE PRODUCED AT HIGH PULSE RECEPTION RATES TO PROVIDE A RELIABLE APPLICATION OF TIME ING MARKS TO THE FILM.
Inventors
- 👤 Andrew E Lennert
- 👤 Frank L Crosswy
- 👤 Henry T Kalb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:22
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/24; G03B39/00; G03B39/04; G03B2217/00; G03B2217/24; G03B2217/242; G03B2217/243
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |