US2812129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suction pump
Assignee: Individual
•
Filing: 1956-05-15
•
Granted: 1957-11-05
•
Expires: 1976-05-15
Abstract
No abstract record available.
Inventors
- 👤 George R Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:28
CPC Classifications
F; F04; F04B; F04B53/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US29662A
Cited
US526175A
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US632801A
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US790051A
Cited
US963528A
Cited
US1511971A
Cited
US1844979A
Cited
US2129415A
Cited
US2498359A
Cited
US2697842A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-04 | 1961-05-06 | 1961-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-04 | 1965-05-06 | 1965-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-04 | 1969-05-06 | 1969-11-05 | $7700.00 | Window Closed / Lapsed |