Patent US3298306A successfully refreshed from Google Patents.
US3298306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro-explosive device
Assignee: Bendix Corp
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Filing: 1964-05-26
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Granted: 1967-01-17
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Expires: 1984-05-26
Abstract
No abstract record available.
Inventors
- 👤 Rolland M Purdy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:36
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/10; F42B3/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A SQUIB COMPRISING MEANS FORMING A SUBSTANTIALLY SEALED GAS-FILLED CHAMBER, SAID MEANS INCLUDING A THIN FRANGIBLE SHEET CLOSING ONE END OF THE CHAMBER, AND MEANS CONFRONTING THE GAS IN THE CHAMBER AND FORMING A SPARK GAP AT THE OTHER END OF SAID CHAMBER, SAID SHEET BEING RUPTURABLE BY THE THERMAL EXPANSION OF THE GAS IN SAID CHAMBER ONLY UPON A SPARK DISCHARGE OF AT LEAST PREDETERMINED MINIMUM INTENSITY ACROSS THE GAP THROUGH SAID GAS.
Claim 2
Dependent Claim
74 words
A SQUIB COMPRISING MEANS FORMING A SUBSTANTIALLY SEALED GAS-FILLED CHAMBER, SAID MEANS INCLUDING A THIN FRANGIBLE SHEET CLOSING ONE END OF THE CHAMBER, AND MEANS CONFRONTING THE GAS IN THE CHAMBER AND FORMING A SPARK GAP AT THE OTHER END OF SAID CHAMBER, SAID SHEET BEING RUPTURABLE BY THE THERMAL EXPANSION OF THE GAS IN SAID CHAMBER ONLY UPON A SPARK DISCHARGE OF AT LEAST PREDETERMINED MINIMUM INTENSITY ACROSS THE GAP THROUGH SAID GAS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |