US2771009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Punching machine
Assignee: CARROLL
•
Filing: 1952-06-03
•
Granted: 1956-11-20
•
Expires: 1972-06-03
Abstract
No abstract record available.
Inventors
- 👤 Wallace E Carroll
- 👤 James M Bowles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:48
CPC Classifications
B; B26; B26F; B26F1/00; B26F1/32; B26F1/36; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1056; Y10T156/12; Y10T156/125; Y10T156/1304; Y10T156/1309
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1826557A
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US1879233A
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GB435051A
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US2353232A
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US2293246A
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US2441821A
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US2437022A
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US2541444A
Cited
US2512822A
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US2557831A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-20 | 1960-05-21 | 1960-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-20 | 1964-05-21 | 1964-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-20 | 1968-05-21 | 1968-11-20 | $7700.00 | Window Closed / Lapsed |