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US2981271A
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Gas turbine isochronous governor
Assignee: Holley Performance Products Inc
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Filing: 1954-06-01
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Granted: 1961-04-25
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Expires: 1974-06-01
Abstract
No abstract record available.
Inventors
- 👤 Warren H Cowles
- 👤 James D Pembleton
- 👤 O'shaughnessey John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:57
CPC Classifications
F; F02; F02D; F02D9/00; F02C; F02C7/00; F02C7/22; F02C7/232; F02C9/00; F02C9/26; F02C9/263; F02C9/28; Y; Y10; Y10T; Y10T137/00; Y10T137/0971; Y10T137/1007; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2579; Y10T137/2582; Y10T137/8593; Y10T137/85978; Y10T137/86171
Claims Analysis
Total Claims: 0
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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) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |