Patent US3250442A successfully refreshed from Google Patents.
US3250442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable grease cartridge
Assignee: Individual
•
Filing: 1964-02-27
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Granted: 1966-05-10
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Expires: 1984-02-27
Abstract
No abstract record available.
Inventors
- 👤 Bell Hugh Micheal
- 👤 Howard A Woodruff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:44
CPC Classifications
F; F16; F16N; F16N3/00; F16N3/10; F16N3/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A DISPOSABLE GREASE CARTRIDGE FOR USE IN STANDARD GREASE HAND-GUNS COMPRISING: (A) A HOLLOW THIN WALL CYLINDRICAL CASING; (B) AN APERTURED SEALING DISC BEING INTERIORLY THREADED AND ADAPTED TO CLOSE THE REAR END OF SAID CASING; (C) A PLUNGER DISC DISPOSED WITHIN THE CAUSING AND IN SLIDABLE PERIPHERAL CONTACT THEREWITH, SAID PLUNGER CONTAINING A BOSS EXTENDING OUTWARD FROM ITS REAR FACE, SAID BOSS BEING THREADED FOR DIRECT DETACHABLE ENGAGEMENT WITH SAID SEALING DISC; (D) A COMPRESSIBLE SPRING INTERPOSED BETWEEN SAID SEALING DISC AND PLUNGER DISC; AND (E) A NARROW PLASTIC LIP DISPOSED PERIPHERALLY ABOUT SAID CASING AT ITS FORWARD END.
Claim 2
Dependent Claim
100 words
A DISPOSABLE GREASE CARTRIDGE FOR USE IN STANDARD GREASE HAND-GUNS COMPRISING: (A) A HOLLOW THIN WALL CYLINDRICAL CASING; (B) AN APERTURED SEALING DISC BEING INTERIORLY THREADED AND ADAPTED TO CLOSE THE REAR END OF SAID CASING; (C) A PLUNGER DISC DISPOSED WITHIN THE CAUSING AND IN SLIDABLE PERIPHERAL CONTACT THEREWITH, SAID PLUNGER CONTAINING A BOSS EXTENDING OUTWARD FROM ITS REAR FACE, SAID BOSS BEING THREADED FOR DIRECT DETACHABLE ENGAGEMENT WITH SAID SEALING DISC; (D) A COMPRESSIBLE SPRING INTERPOSED BETWEEN SAID SEALING DISC AND PLUNGER DISC; AND (E) A NARROW PLASTIC LIP DISPOSED PERIPHERALLY ABOUT SAID CASING AT ITS FORWARD END.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |