US2963232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinder
Assignee: Individual
•
Filing: 1956-11-28
•
Granted: 1960-12-06
•
Expires: 1976-11-28
Abstract
No abstract record available.
Inventors
- 👤 Eric S Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:30
CPC Classifications
B; B02; B02C; B02C2/00; B02C2/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US4342A
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US8670A
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US52953A
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US613193A
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US1794972A
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US1993762A
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US2004737A
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US2063996A
Cited
US2076188A
Cited
US2159670A
Cited
FR986937A
Cited
US2653770A
Cited
US2749053A
Cited
US2823871A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |