Patent US3036839A successfully refreshed from Google Patents.
US3036839A
Expired / Lapsed
US
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Grinding wheel chuck
Assignee: Individual
•
Filing: 1959-08-20
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Granted: 1962-05-29
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Expires: 1979-08-20
Abstract
No abstract record available.
Inventors
- 👤 Jr George D Williamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:37
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/008; B23B31/005; B23B31/02; B23B31/10; B23B31/107; B23B31/1071; B23B31/12; B23B31/20; B23B31/201; B23B31/202; B24; B24B; B24B45/00; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17128; Y10T279/17162; Y10T279/17411; Y10T279/17487; Y10T279/17504; Y10T279/17761; Y10T279/17888
Claims Analysis
Total Claims: 0
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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) | 1965-05-28 | 1965-11-27 | 1966-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-28 | 1969-11-27 | 1970-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-28 | 1973-11-27 | 1974-05-29 | $7700.00 | Window Closed / Lapsed |