US3517197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyrotechnic means for interrupting the light output of a flashbulb
Assignee: Rollei of America Inc
•
Filing: 1968-01-25
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Granted: 1970-06-23
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Expires: 1988-01-25
Abstract
No abstract record available.
Inventors
- 👤 George J Poeschl
- 👤 Earl A Platt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:09
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/14; H05B41/30; H05B41/32; H05B41/325; F; F21; F21K; F21K5/00; F21K5/02; G; G03; G03B; G03B15/00; G03B15/02; G03B15/03; G03B15/04; G03B7/00; G03B7/16
Claims Analysis
Total Claims: 0
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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) | 1973-06-22 | 1973-12-22 | 1974-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-22 | 1977-12-22 | 1978-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-22 | 1981-12-22 | 1982-06-23 | $7700.00 | Window Closed / Lapsed |