US2938667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination card feed and sensing means
Assignee: Monroe Calculating Machine Co
•
Filing: 1957-01-25
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Granted: 1960-05-31
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Expires: 1977-01-25
Abstract
No abstract record available.
Inventors
- 👤 Fritz A Deutsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:48
CPC Classifications
G; G06; G06K; G06K13/00; G06K13/02; G06K13/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1741992A
Cited
US1976618A
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US2084850A
Cited
US2374790A
Cited
US2566927A
Cited
US2517984A
Cited
US2803404A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-31 | 1963-11-30 | 1964-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-31 | 1967-11-30 | 1968-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-31 | 1971-11-30 | 1972-05-31 | $7700.00 | Window Closed / Lapsed |