Patent US2945672A successfully refreshed from Google Patents.
US2945672A
Expired / Lapsed
US
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Gas turbine unit
Assignee: Marquardt Corp
•
Filing: 1956-10-05
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Granted: 1960-07-19
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Expires: 1976-10-05
Abstract
No abstract record available.
Inventors
- 👤 William A Wagner
- 👤 Walter J Koerner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:08
CPC Classifications
F; F01; F01D; F01D17/00; F01D17/02; F01D17/06; G; G05; G05D; G05D13/00; G05D13/08; G05D13/10; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2388975A
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US2689680A
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FR1012339A
Cited
GB672193A
Cited
US2770943A
Cited
CH311920A
Cited
US2797858A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-19 | 1964-01-18 | 1964-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-19 | 1968-01-18 | 1968-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-19 | 1972-01-18 | 1972-07-19 | $7700.00 | Window Closed / Lapsed |