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US2968290A
Expired / Lapsed
US
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Gas generators
Assignee: BROMEGA Ltd
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Filing: 1957-05-22
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Granted: 1961-01-17
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Expires: 1977-05-22
Abstract
No abstract record available.
Inventors
- 👤 Bradshaw Granville Eastwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:12
CPC Classifications
F; F02; F02B; F02B71/00; F02B71/04; F02B71/06; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025; F02B3/00; F02B3/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US992096A
Cited
US1111605A
Cited
US1809577A
Cited
FR718627A
Cited
US2127743A
Cited
US2303794A
Cited
US2565272A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-17 | 1964-07-18 | 1965-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-17 | 1968-07-18 | 1969-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-17 | 1972-07-18 | 1973-01-17 | $7700.00 | Window Closed / Lapsed |