Patent US2451263A successfully refreshed from Google Patents.
US1962567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Workholding mechanism for machining operations
Assignee: Individual
•
Filing: 1931-06-01
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Granted: 1934-06-12
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Expires: 1951-06-01
Abstract
No abstract record available.
Inventors
- 👤 Ralph M Lovejoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:31
CPC Classifications
B; B23; B23Q; B23Q3/00; B23Q3/02; B23Q3/06; B23Q3/08; B23Q2703/00; B23Q2703/02; B23Q2703/04; Y; Y10; Y10S; Y10S409/00; Y10S409/903; Y10T; Y10T29/00; Y10T29/51; Y10T29/5124; Y10T29/5127; Y10T29/513
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1937-06-11 | 1937-12-11 | 1938-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-06-11 | 1941-12-11 | 1942-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-06-11 | 1945-12-11 | 1946-06-12 | $7700.00 | Window Closed / Lapsed |