Patent US1785480A successfully refreshed from Google Patents.
US1785480A
Expired / Lapsed
US
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Pumping apparatus for sewage and other liquids
Assignee: Individual
•
Filing: 1927-04-27
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Granted: 1930-12-16
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Expires: 1947-04-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Augustus C Durdin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:53
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/40; F04D29/406; F04D7/00; F04D7/02; F04D7/04
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) | 1933-12-15 | 1934-06-16 | 1934-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-12-15 | 1938-06-16 | 1938-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-12-15 | 1942-06-16 | 1942-12-16 | $7700.00 | Window Closed / Lapsed |