US3489100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air driven fluid pump
Assignee: Haskel Engineering and Supply Co
•
Filing: 1967-12-13
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Granted: 1970-01-13
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Expires: 1987-12-13
Abstract
No abstract record available.
Inventors
- 👤 David C Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:37
CPC Classifications
F; F04; F04B; F04B9/00; F04B9/08; F04B9/12; F04B9/123; F04B9/125; F01; F01L; F01L25/00; F01L25/02; F01L25/04; F01L25/06; F01L25/066; F04B9/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |