Patent US2921487A successfully refreshed from Google Patents.
US2921487A
Expired / Lapsed
US
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Indexing fixture
Assignee: Individual
•
Filing: 1956-08-27
•
Granted: 1960-01-19
•
Expires: 1976-08-27
Abstract
No abstract record available.
Inventors
- 👤 Schabot Bernard William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:11
CPC Classifications
B; B23; B23Q; B23Q16/00; B23Q16/02; B23Q16/08; Y; Y10; Y10T; Y10T74/00; Y10T74/14; Y10T74/1476
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2406906A
Cited
US993290A
Cited
US1461316A
Cited
US1690568A
Cited
US2202117A
Cited
US2366079A
Cited
GB580135A
Cited
US2432336A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-18 | 1963-07-20 | 1964-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-18 | 1967-07-20 | 1968-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-18 | 1971-07-20 | 1972-01-19 | $7700.00 | Window Closed / Lapsed |