US3099962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric timer and sequencing system for pyrotechnic flash items
Assignee: Individual
•
Filing: 1961-06-28
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Granted: 1963-08-06
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Expires: 1981-06-28
Abstract
No abstract record available.
Inventors
- 👤 Chester L Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:08
CPC Classifications
F; F42; F42D; F42D1/00; F42D1/04; F42D1/045; F42D1/05; F42D1/055
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
59 words
IN COMBINATION: A. AN R-C TIMER CIRCUIT COMPRISING A POWER SOURCE, SWITCH, RESISTOR AND CAPACITOR; B. A PLURALITY OF SQUIB CIRCUITS COMPRISING A DIODE AND SQUIB, SAID SQUIB CIRCUITS BEING CONNECTED IN PARALLEL WITH SAID R-C TIMER CIRCUIT; C. A CAPACITOR DISCHARGE CIRCUIT COMPRISING A RESISTOR AND A SILICON SEMICONDUCTOR GRID-CONTROLLED RECTIFIER, SAID CAPACITOR DISCHARGE CIRCUIT BEING CONNECTED IN
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) | 1966-08-05 | 1967-02-04 | 1967-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-05 | 1971-02-04 | 1971-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-05 | 1975-02-04 | 1975-08-06 | $7700.00 | Window Closed / Lapsed |