Patent US2774259A successfully refreshed from Google Patents.
US2774259A
Expired / Lapsed
US
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Method of making box wrenches
Assignee: Individual
•
Filing: 1955-07-11
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Granted: 1956-12-18
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Expires: 1975-07-11
Abstract
No abstract record available.
Inventors
- 👤 Frank T Caulkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:21
CPC Classifications
B; B23; B23P; B23P15/00; B25; B25B; B25B13/00; B25B13/02; B25B13/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US347262A
Cited
USRE19341E
Cited
US1384655A
Cited
GB328063A
Cited
US1958705A
Cited
US2027922A
Cited
US2457451A
Cited
US2715347A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-18 | 1960-06-18 | 1960-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-18 | 1964-06-18 | 1964-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-18 | 1968-06-18 | 1968-12-18 | $7700.00 | Window Closed / Lapsed |