Patent US2521231A successfully refreshed from Google Patents.
US2521231A
Expired / Lapsed
US
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Vise and jig
Assignee: Individual
•
Filing: 1946-11-22
•
Granted: 1950-09-05
•
Expires: 1966-11-22
Abstract
No abstract record available.
Inventors
- 👤 Lewis M Larson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:30
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/44; B23Q1/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US467857A
Cited
US1092867A
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US1295982A
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US1434131A
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US2181396A
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US1830189A
Cited
US2396281A
Cited
US2394202A
Cited
US2476361A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-04 | 1954-03-06 | 1954-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-04 | 1958-03-06 | 1958-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-04 | 1962-03-06 | 1962-09-05 | $7700.00 | Window Closed / Lapsed |