US3282180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic flash control device for photographic cameras
Assignee: Eastman Kodak Co
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Filing: 1964-06-29
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Granted: 1966-11-01
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Expires: 1984-06-29
Abstract
No abstract record available.
Inventors
- 👤 Jr Miller R Hutchison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:52
CPC Classifications
G; G03; G03B; G03B7/00; G03B7/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
IN A CAMERA ADAPTED TO RECEIVE A FLASH LAMP, THE COMBINATION COMPRISING: MEANS TO ELECTRICALLY RECEIVE A FLASH LAMP, A SOURCE OF ELECTRICAL POTENTIAL AND A SWITCHING MEANS IN SERIES WITH SAID LAMP RECEIVING MEANS; A SHUTTER SYNCHRONIZING SWITCH IN SERIES WITH SAID FLASH LAMP RECEIVING MEANS TO CLOSE THE FLASH LAMP RECEIVING MEANS IN TIMED RELATIONSHIP WITH OPERATION OF A SHUTTER; A PHOTORESISTIVE CELL ILLUMINATABLE BY FIELD LIGHT AND IN PARALLEL ELECTRICALLY WITH SAID FLASH LAMP RECEIVING MEANS; AN ELECTROMAGNETIC RELAY IN SERIES ELECTRICALLY WITH SAID PHOTORESISTIVE CELL AND IN PARALLEL WITH SAID FLASH LAMP RECEIVING MEANS AND SAID SWITCHING MEANS; SPRING MEANS URGING THE SWITCHING MEANS TO A CLOSED POSITION TO ENABLE FIRING OF A FLASHLAMP IN THE RECEIVING MEANS, THE RELAY OVERCOMING SAID SPRING MEANS TO MAINTAIN THE SWITCHING MEANS IN AN OPEN CONDITION AND PREVENT FIRING ONLY WHEN SAID RELAY IS ENERGIZED ABOVE A PREDETERMINED LEVEL WHENEVER THE
Claim 2
Dependent Claim
152 words
IN A CAMERA ADAPTED TO RECEIVE A FLASH LAMP, THE COMBINATION COMPRISING: MEANS TO ELECTRICALLY RECEIVE A FLASH LAMP, A SOURCE OF ELECTRICAL POTENTIAL AND A SWITCHING MEANS IN SERIES WITH SAID LAMP RECEIVING MEANS; A SHUTTER SYNCHRONIZING SWITCH IN SERIES WITH SAID FLASH LAMP RECEIVING MEANS TO CLOSE THE FLASH LAMP RECEIVING MEANS IN TIMED RELATIONSHIP WITH OPERATION OF A SHUTTER; A PHOTORESISTIVE CELL ILLUMINATABLE BY FIELD LIGHT AND IN PARALLEL ELECTRICALLY WITH SAID FLASH LAMP RECEIVING MEANS; AN ELECTROMAGNETIC RELAY IN SERIES ELECTRICALLY WITH SAID PHOTORESISTIVE CELL AND IN PARALLEL WITH SAID FLASH LAMP RECEIVING MEANS AND SAID SWITCHING MEANS; SPRING MEANS URGING THE SWITCHING MEANS TO A CLOSED POSITION TO ENABLE FIRING OF A FLASHLAMP IN THE RECEIVING MEANS, THE RELAY OVERCOMING SAID SPRING MEANS TO MAINTAIN THE SWITCHING MEANS IN AN OPEN CONDITION AND PREVENT FIRING ONLY WHEN SAID RELAY IS ENERGIZED ABOVE A PREDETERMINED LEVEL WHENEVER THE
References Cited (Backward Citations)
US3087398A
Cited
US3073226A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |