US3482637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and method for quenching incipient gas-air explosions
Assignee: United States Department of the Interior
•
Filing: 1967-10-20
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Granted: 1969-12-09
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Expires: 1987-10-20
Abstract
No abstract record available.
Inventors
- 👤 Donald W Mitchell
- 👤 Edwin M Murphy
- 👤 Edward M Kawenski
- 👤 John Nagy
- 👤 Roger P Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:52
CPC Classifications
A; A62; A62C; A62C3/00; A62C35/00; A62C35/02; A62C35/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1708869A
Cited
US2373819A
Cited
US2869647A
Cited
US3196273A
Cited
US3258423A
Cited
US3320881A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-08 | 1973-06-09 | 1973-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-08 | 1977-06-09 | 1977-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-08 | 1981-06-09 | 1981-12-09 | $7700.00 | Window Closed / Lapsed |