US2996245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Punching and reading apparatus for calculating machines
Assignee: Individual
•
Filing: 1957-08-08
•
Granted: 1961-08-15
•
Expires: 1977-08-08
Abstract
No abstract record available.
Inventors
- 👤 Wittenmyer Carlos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:31
CPC Classifications
G; G06; G06C; G06C11/00; G06C11/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2487357A
Cited
US2583666A
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US2459468A
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US2405268A
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US1292944A
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US1489534A
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US1626871A
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US1970714A
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US2536837A
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US2637493A
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US2850238A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |