US2490115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable displacement rotary pump
Assignee: Bendix Aviation Corp
•
Filing: 1942-10-28
•
Granted: 1949-12-06
•
Expires: 1962-10-28
Abstract
No abstract record available.
Inventors
- 👤 Douglas C Clarke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:52
CPC Classifications
F; F04; F04C; F04C14/00; F04C14/10; F04C14/02; F04C15/00; F04C15/0003; F04C15/0023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1964330A
Cited
US711662A
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US1603395A
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GB238886A
Cited
US1970146A
Cited
US1965388A
Cited
US2042247A
Cited
US2119902A
Cited
US2166423A
Cited
US2079375A
Cited
US2234775A
Cited
FR848518A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-05 | 1953-06-06 | 1953-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-05 | 1957-06-06 | 1957-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-05 | 1961-06-06 | 1961-12-06 | $7700.00 | Window Closed / Lapsed |