Patent US5126687A successfully refreshed from Google Patents.
Patent US2741994A successfully refreshed from Google Patents.
US2741994A
Expired / Lapsed
US
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Lift pump
Assignee: Individual
•
Filing: 1951-06-26
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Granted: 1956-04-17
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Expires: 1971-06-26
Abstract
No abstract record available.
Inventors
- 👤 Ernest G Dann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:01
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/58; B67D7/60; B67D1/00; B67D1/08; B67D1/10; B67D1/101; F; F04; F04B; F04B9/00; 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) | 1959-04-17 | 1959-10-17 | 1960-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-17 | 1963-10-17 | 1964-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-17 | 1967-10-17 | 1968-04-17 | $7700.00 | Window Closed / Lapsed |