US2525370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cellar-draining pump
Assignee: Individual
•
Filing: 1945-09-01
•
Granted: 1950-10-10
•
Expires: 1965-09-01
Abstract
No abstract record available.
Inventors
- 👤 Pollak Abraham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:22
CPC Classifications
F; F04; F04D; F04D7/00; F04D7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1586586A
Cited
US1883266A
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US1801103A
Cited
US1812874A
Cited
US1891201A
Cited
US1909578A
Cited
US1942570A
Cited
US1960659A
Cited
US2018092A
Cited
US2149600A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-09 | 1954-04-10 | 1954-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-09 | 1958-04-10 | 1958-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-09 | 1962-04-10 | 1962-10-10 | $7700.00 | Window Closed / Lapsed |