US3043225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable liquid level control for pumps
Assignee: Individual
•
Filing: 1959-08-10
•
Granted: 1962-07-10
•
Expires: 1979-08-10
Abstract
No abstract record available.
Inventors
- 👤 Axel L Nielsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:51
CPC Classifications
G; G05; G05D; G05D9/00; G05D9/02; F; F04; F04D; F04D15/00; F04D15/02; F04D15/0209; F04D15/0218
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1162373A
Cited
US1419316A
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US2269009A
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US2407139A
Cited
US2488506A
Cited
US2775205A
Cited
US2804516A
Cited
US2834845A
Cited
US2945446A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-09 | 1966-01-08 | 1966-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-09 | 1970-01-08 | 1970-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-09 | 1974-01-08 | 1974-07-10 | $7700.00 | Window Closed / Lapsed |