UST961005I4
Expired / Lapsed
US
⏱️ 0.0 years remaining
Camera electromagnetic shutter release
Assignee: Edmund F. Deffenbaugh
•
Filing: 1976-10-26
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Granted: 1977-08-02
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Expires: 1996-10-26
Abstract
Abstract a shutter release mechanism for a camera uses an electromagnetic shutter latch that is operated by an exposure initiating button to delay opening movement of the shutter for a predetermined time after operation of the exposure initiating button.
Inventors
- 👤 Edmund F. Deffenbaugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 23:15
CPC Classifications
G; G03; G03B; G03B9/00; G03B9/64
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) | 1980-08-01 | 1981-01-31 | 1981-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-01 | 1985-01-31 | 1985-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-01 | 1989-01-31 | 1989-08-02 | $7700.00 | Window Closed / Lapsed |