US2832293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vane pump
Assignee: American Brake Shoe Co
•
Filing: 1954-01-26
•
Granted: 1958-04-29
•
Expires: 1974-01-26
Abstract
No abstract record available.
Inventors
- 👤 Cecil E Adams
- 👤 Sun Yung Ho
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:35
CPC Classifications
F; F01; F01C; F01C21/00; F01C21/08; F01C21/0809; F01C21/0818; F01C21/0854; F01C21/0863
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB433488A
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DE658560C
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GB482750A
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US2251784A
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US2335284A
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US2423271A
Cited
US2545238A
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US2499763A
Cited
US2716469A
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US2653551A
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US2714858A
Cited
US2623471A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-28 | 1961-10-28 | 1962-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-28 | 1965-10-28 | 1966-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-28 | 1969-10-28 | 1970-04-29 | $7700.00 | Window Closed / Lapsed |