US2981037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Workholder and method for internal grinding
Assignee: Bryant Grinder Corp
•
Filing: 1958-04-17
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Granted: 1961-04-25
•
Expires: 1978-04-17
Abstract
No abstract record available.
Inventors
- 👤 Charles J Terp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:37
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/025; B24; B24B; B24B41/00; B24B41/06; B24B41/061; B24B5/00; B24B5/02; B24B5/06; Y; Y10; Y10T; Y10T279/00; Y10T279/28; Y10T279/33
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1854825A
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US2105618A
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US2443895A
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US2450970A
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US2696986A
Cited
US2706369A
Cited
US2754641A
Cited
US2885212A
Cited
US2820641A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |