US2740420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid evacuating apparatus
Assignee: Individual
•
Filing: 1951-03-12
•
Granted: 1956-04-03
•
Expires: 1971-03-12
Abstract
No abstract record available.
Inventors
- 👤 Harold M Hanks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:13
CPC Classifications
F; F01; F01M; F01M11/00; F01M11/04; F01M11/045; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3109; Y10T137/8593; Y10T137/86187; Y10T137/86228
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1308713A
Cited
US1609697A
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US1955169A
Cited
US2020350A
Cited
US2105761A
Cited
US2242288A
Cited
US2156869A
Cited
US2320048A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-03 | 1959-10-03 | 1960-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-03 | 1963-10-03 | 1964-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-03 | 1967-10-03 | 1968-04-03 | $7700.00 | Window Closed / Lapsed |