Patent US2759640A successfully refreshed from Google Patents.
US2759640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cartridge grease gun
Assignee: Individual
•
Filing: 1954-02-15
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Granted: 1956-08-21
•
Expires: 1974-02-15
Abstract
No abstract record available.
Inventors
- 👤 Harold H Deupree
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:24
CPC Classifications
F; F16; F16N; F16N3/00; F16N3/10; F16N3/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1540182A
Cited
GB205319A
Cited
US1689186A
Cited
US2003107A
Cited
US1924841A
Cited
US1965547A
Cited
US2123712A
Cited
US2079744A
Cited
US2102939A
Cited
US2394488A
Cited
US2717724A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-21 | 1960-02-20 | 1960-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-21 | 1964-02-20 | 1964-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-21 | 1968-02-20 | 1968-08-21 | $7700.00 | Window Closed / Lapsed |