US2635548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary pump
Assignee: BRAWLEY PUMP Co
•
Filing: 1945-12-21
•
Granted: 1953-04-21
•
Expires: 1965-12-21
Abstract
No abstract record available.
Inventors
- 👤 Clyde H Brawley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:25
CPC Classifications
F; F04; F04D; F04D7/00; F04D7/02; F04D7/04; F05; F05D; F05D2260/00; F05D2260/60; F05D2260/604
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB114926A
Cited
DE377868C
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US1207316A
Cited
US1619286A
Cited
US1718396A
Cited
US1811651A
Cited
US1951288A
Cited
US2370438A
Cited
US2430552A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-20 | 1956-10-20 | 1957-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-20 | 1960-10-20 | 1961-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-20 | 1964-10-20 | 1965-04-21 | $7700.00 | Window Closed / Lapsed |