US2756444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for making nut blanks having axially extending skirt portions
Assignee: Waterbury Farrei Foundry & Mac
•
Filing: 1953-04-27
•
Granted: 1956-07-31
•
Expires: 1973-04-27
Abstract
No abstract record available.
Inventors
- 👤 Joseph M Schaeffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:18
CPC Classifications
B; B21; B21K; B21K1/00; B21K1/64
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1925753A
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US1993137A
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US2080850A
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US2436342A
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US2432844A
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US2542023A
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US2393850A
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US2547801A
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US2576906A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-31 | 1960-01-30 | 1960-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-31 | 1964-01-30 | 1964-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-31 | 1968-01-30 | 1968-07-31 | $7700.00 | Window Closed / Lapsed |