US2627928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Propeller
Assignee: Individual
•
Filing: 1945-04-30
•
Granted: 1953-02-10
•
Expires: 1965-04-30
Abstract
No abstract record available.
Inventors
- 👤 Alexander S Mullgardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:12
CPC Classifications
F; F03; F03D; F03D7/00; F03D7/02; F03D7/04; F03D7/041; B; B64; B64C; B64C11/00; B64C11/16; B64C11/30; B64C27/00; B64C27/32; B64C27/46; B64C27/473; F03D1/00; F03D1/06; F03D1/065; F03D1/0658; F03D7/022; F03D7/0224; F05; F05B; F05B2260/00; F05B2260/70; F05B2260/74; F05B2260/79; Y; Y02; Y02E; Y02E10/00; Y02E10/70; Y02E10/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1449129A
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US1526230A
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US1919089A
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FR752142A
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US1986709A
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US2108417A
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FR851766A
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US2475121A
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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) | 1956-02-10 | 1956-08-11 | 1957-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-10 | 1960-08-11 | 1961-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-10 | 1964-08-11 | 1965-02-10 | $7700.00 | Window Closed / Lapsed |