Patent US2792972A successfully refreshed from Google Patents.
US2792972A
Expired / Lapsed
US
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Cartridge grease gun assembly
Assignee: Individual
•
Filing: 1955-02-04
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Granted: 1957-05-21
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Expires: 1975-02-04
Abstract
No abstract record available.
Inventors
- 👤 Harold H Deupree
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:15
CPC Classifications
F; F16; F16N; F16N3/00; F16N3/10; F16N3/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1692423A
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US1585538A
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US1761127A
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DE531026C
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US2090111A
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US2059446A
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US1965547A
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US2025230A
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US2409619A
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US2373774A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-20 | 1960-11-19 | 1961-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-20 | 1964-11-19 | 1965-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-20 | 1968-11-19 | 1969-05-21 | $7700.00 | Window Closed / Lapsed |