US2737241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic zeros punching device under key and program card control
Assignee: International Business Machines Corp
•
Filing: 1952-10-17
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Granted: 1956-03-06
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Expires: 1972-10-17
Abstract
No abstract record available.
Inventors
- 👤 Charles R Doty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:27
CPC Classifications
G; G06; G06K; G06K1/00; G06K1/02; G06K1/06; B; B26; B26D; B26D5/00; B26F; B26F1/00; B26F1/02; B26F1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB423265A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-06 | 1959-09-05 | 1960-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-06 | 1963-09-05 | 1964-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-06 | 1967-09-05 | 1968-03-06 | $7700.00 | Window Closed / Lapsed |