US3943532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flash attachment for self-developing collapsible cameras
Assignee: International Telephone and Telegraph Corp
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Filing: 1974-06-25
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Granted: 1976-03-09
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Expires: 1994-06-25
Abstract
Abstract An improved flash lamp attachment for self-developing collapsible cameras provides high pressure xenon flash illumination by means of removable and separate flash lamp and power-pack assemblies. The powerpack circuitry utilizes part of the voltage provided within the camera film battery pack along with voltage supplied by an auxiliary battery disposably contained within the power-pack assembly.
Inventors
- 👤 John De Filippis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:38
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/02; G03B15/03; G03B15/05; G03B2215/00; G03B2215/05; G03B2215/0514
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
118 words
In an improved electronic flash unit for a collapsible camera containing a self-developing film pack, said unit of the type including a flash lamp positioned above the camera lens and a power pack below the camera lens, wherein the improvement comprises: means for mounting the power pack flush with the bottom of the camera, said mounting means being integrally formed with the power pack for providing connection with said camera when said camera is in both a collapsed inoperative position and an open operative position, said means including engaging members extending from the top of the power pack and engaging the bottom sides of the camera to provide press fit retention between the power pack and the camera.
Claim 2
Dependent Claim
118 words
In an improved electronic flash unit for a collapsible camera containing a self-developing film pack, said unit of the type including a flash lamp positioned above the camera lens and a power pack below the camera lens, wherein the improvement comprises: means for mounting the power pack flush with the bottom of the camera, said mounting means being integrally formed with the power pack for providing connection with said camera when said camera is in both a collapsed inoperative position and an open operative position, said means including engaging members extending from the top of the power pack and engaging the bottom sides of the camera to provide press fit retention between the power pack and the camera.
Claim 3
Dependent Claim
25 words
The improved electronic flash unit of claim 1 wherein said flash lamp is removably connected with said camera by means of a bayonet-type electrical connection.
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) | 1979-03-09 | 1979-09-08 | 1980-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-09 | 1983-09-08 | 1984-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-09 | 1987-09-08 | 1988-03-09 | $7700.00 | Window Closed / Lapsed |