Patent US2487823A successfully refreshed from Google Patents.
US2487823A
Expired / Lapsed
US
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Jig
Assignee: Individual
•
Filing: 1945-11-28
•
Granted: 1949-11-15
•
Expires: 1965-11-28
Abstract
No abstract record available.
Inventors
- 👤 Mettrick Arthur
- 👤 Hook David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:15
CPC Classifications
B; B23; B23B; B23B47/00; B23B47/28; Y; Y10; Y10T; Y10T408/00; Y10T408/55; Y10T408/557; Y10T408/561; Y10T408/5623; Y10T408/56245; Y10T408/569; Y10T408/96; Y10T408/97
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1445016A
Cited
US1452103A
Cited
US1742224A
Cited
US2340508A
Cited
US2409160A
Cited
US2399257A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-14 | 1953-05-16 | 1953-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-14 | 1957-05-16 | 1957-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-14 | 1961-05-16 | 1961-11-15 | $7700.00 | Window Closed / Lapsed |