Patent US1970146A successfully refreshed from Google Patents.
US1970146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversible liquid pump
Assignee: Individual
•
Filing: 1926-03-01
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Granted: 1934-08-14
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Expires: 1946-03-01
Abstract
No abstract record available.
Inventors
- 👤 Myron F Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:19
CPC Classifications
F; F04; F04C; F04C14/00; F04C14/04; F04C2/00; F04C2/08; F04C2/082; F04C2/084; F04C2/10; F04C2/102
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1937-08-13 | 1938-02-12 | 1938-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-08-13 | 1942-02-12 | 1942-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-08-13 | 1946-02-12 | 1946-08-14 | $7700.00 | Window Closed / Lapsed |