Patent US3805770A successfully refreshed from Google Patents.
US1736002A
Expired / Lapsed
US
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Pumping system
Assignee: Individual
•
Filing: 1925-12-26
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Granted: 1929-11-19
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Expires: 1945-12-26
Abstract
No abstract record available.
Inventors
- 👤 Royal E Frickey
- 👤 Layne William Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:20
CPC Classifications
H; H02; H02K; H02K9/00; H02K9/24; H02K5/00; H02K5/04; H02K5/12; H02K5/132
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) | 1932-11-18 | 1933-05-20 | 1933-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-11-18 | 1937-05-20 | 1937-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-11-18 | 1941-05-20 | 1941-11-19 | $7700.00 | Window Closed / Lapsed |