US2859377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic high speed shutter
Assignee: Individual
•
Filing: 1955-09-21
•
Granted: 1958-11-04
•
Expires: 1975-09-21
Abstract
No abstract record available.
Inventors
- 👤 John E Clemens
- 👤 Ben B Johnstone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:51
CPC Classifications
G; G06; G06K; G06K15/00; G06K15/02; G06K15/14; G03; G03B; G03B39/00; G03B39/005; G03B9/00; G03B9/08; G03G; G03G15/00; G03G15/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2645169A
Cited
US2537105A
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US2603418A
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US2535810A
Cited
US2596741A
Cited
US2539370A
Cited
US2808768A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |