Patent US2903133A successfully refreshed from Google Patents.
US2903133A
Expired / Lapsed
US
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Electrical control system for business machine card apparatus
Assignee: Cummins Chicago Corp
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Filing: 1956-04-12
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Granted: 1959-09-08
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Expires: 1976-04-12
Abstract
No abstract record available.
Inventors
- 👤 James L Quinn
- 👤 James K Duncan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:50
CPC Classifications
G; G06; G06K; G06K21/00; G06K21/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1732426A
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US1835382A
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US2093573A
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US2234456A
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US2312357A
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US2393614A
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US2358051A
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US2433685A
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US2783882A
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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) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |