Patent US2821992A successfully refreshed from Google Patents.
US2821992A
Expired / Lapsed
US
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Fuel system for gas turbine
Assignee: Motors Liquidation Co
•
Filing: 1947-04-19
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Granted: 1958-02-04
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Expires: 1967-04-19
Abstract
No abstract record available.
Inventors
- 👤 Elmer A Richards
- 👤 Joseph B Snoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:58
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/22; F02C7/228; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/265; Y10T137/2652
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1272212A
Cited
DE480086C
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DE526869C
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US1930455A
Cited
US1999834A
Cited
GB577132A
Cited
US2291229A
Cited
US2430264A
Cited
US2676603A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-03 | 1961-08-05 | 1962-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-03 | 1965-08-05 | 1966-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-03 | 1969-08-05 | 1970-02-04 | $7700.00 | Window Closed / Lapsed |