US2903971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pumps
Assignee: Individual
•
Filing: 1957-05-27
•
Granted: 1959-09-15
•
Expires: 1977-05-27
Abstract
No abstract record available.
Inventors
- 👤 Lowell J Collins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:08
CPC Classifications
F; F04; F04C; F04C13/00; F04C13/001; F01; F01C; F01C21/00; F01C21/08; F01C21/0809; F01C21/10; F01C21/104; F04C2/00; F04C2/30; F04C2/34; F04C2/344; F04C2/3441; F05; F05B; F05B2280/00; F05B2280/50; F05C; F05C2201/00; F05C2201/04; F05C2201/0433; F05C2201/0448; F05C2225/00; Y; Y10; Y10S; Y10S417/00; Y10S417/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2353965A
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US2791182A
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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) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |