US2879377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Camera flash bulb shield and light control unit
Assignee: Individual
•
Filing: 1955-09-26
•
Granted: 1959-03-24
•
Expires: 1975-09-26
Abstract
No abstract record available.
Inventors
- 👤 Oral W Layng
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:06
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/02; G03B15/03; G03B15/04; G03B15/0442
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1120927A
Cited
US1747635A
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US1824894A
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US1990287A
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US2046388A
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US2205860A
Cited
US2326004A
Cited
US2392502A
Cited
US2437522A
Cited
US2614783A
Cited
FR62227E
Cited
GB742679A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |