US2419781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Key operated card punching machine
Assignee: MCBEE Co
•
Filing: 1945-08-23
•
Granted: 1947-04-29
•
Expires: 1965-08-23
Abstract
No abstract record available.
Inventors
- 👤 Lincoln M Keefe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:36
CPC Classifications
G; G06; G06K; G06K21/00; G06K21/06; Y; Y10; Y10T; Y10T83/00; Y10T83/869; Y10T83/8737; Y10T83/874
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2342516A
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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) | 1950-04-28 | 1950-10-28 | 1951-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-28 | 1954-10-28 | 1955-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-28 | 1958-10-28 | 1959-04-29 | $7700.00 | Window Closed / Lapsed |