US3259042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remote controlled flash photography system
Assignee: Polaroid Corp
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Filing: 1963-12-04
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Granted: 1966-07-05
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Expires: 1983-12-04
Abstract
No abstract record available.
Inventors
- 👤 Kagan Sholly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:28
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/02; G03B15/03; G03B15/04; G03B15/0452; G03B15/0473
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
IN COMBINATION WITH A CAMERA HAVING A PAIR OF FLASH CONTACTS WHOSE CLOSING OCCURS A PREDETERMINED TIME PRIOR TO MAXIMUM SHUTTER OPENING, AND FLASH APPARATUS REMOTE FROM THE CAMERA RESPONSIVE TO A RECEIVED BURST OF CW SIGNAL OF A CERTAIN DURATION LESS THAN SAID PREDETERMINED TIME FOR CAUSING SAID APPARATUS TO PRODUCE AN IMPULSE OF LIGHT FOR ILLUMINATING THE SCENE BEING PHOTOGRAPHED AT THE END OF SAID CERTAIN DURATION AND COINCIDENT WITH MAXIMUM SHUTTER OPENING, TRANSMITTER MEANS FOR SYNCHRONIZING INITIATION OF SAID SIGNAL WITH THE CLOSING OF SAID CONTACTS, SAID TRANSMITTER MEANS COMPRISING: (A) OSCILLATOR MEANS RESPONSIVE TO THE APPLICATION OF A CONTROL VOLTAGE THERETO FOR GENERATING AND BROADCASTING A CW SIGNAL OF SAID CERTAIN DURATION; AND (B) CONTROL MEANS FOR APPLYING SAID CONTROL VOLTAGE TO SAID OSCILLATOR MEANS AFTER A DELAY SUBSTANTIALLY EQUAL TO THE DIFFERENCE BETWEEN SAID PREDETERMINED TIME AND SAID CERTAIN DURATION.
Claim 2
Dependent Claim
145 words
IN COMBINATION WITH A CAMERA HAVING A PAIR OF FLASH CONTACTS WHOSE CLOSING OCCURS A PREDETERMINED TIME PRIOR TO MAXIMUM SHUTTER OPENING, AND FLASH APPARATUS REMOTE FROM THE CAMERA RESPONSIVE TO A RECEIVED BURST OF CW SIGNAL OF A CERTAIN DURATION LESS THAN SAID PREDETERMINED TIME FOR CAUSING SAID APPARATUS TO PRODUCE AN IMPULSE OF LIGHT FOR ILLUMINATING THE SCENE BEING PHOTOGRAPHED AT THE END OF SAID CERTAIN DURATION AND COINCIDENT WITH MAXIMUM SHUTTER OPENING, TRANSMITTER MEANS FOR SYNCHRONIZING INITIATION OF SAID SIGNAL WITH THE CLOSING OF SAID CONTACTS, SAID TRANSMITTER MEANS COMPRISING: (A) OSCILLATOR MEANS RESPONSIVE TO THE APPLICATION OF A CONTROL VOLTAGE THERETO FOR GENERATING AND BROADCASTING A CW SIGNAL OF SAID CERTAIN DURATION; AND (B) CONTROL MEANS FOR APPLYING SAID CONTROL VOLTAGE TO SAID OSCILLATOR MEANS AFTER A DELAY SUBSTANTIALLY EQUAL TO THE DIFFERENCE BETWEEN SAID PREDETERMINED TIME AND SAID CERTAIN DURATION.
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) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |