Patent US2573022A successfully refreshed from Google Patents.
US2573022A
Expired / Lapsed
US
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Operation control means for calculating machines
Assignee: NCR Voyix Corp
•
Filing: 1948-07-29
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Granted: 1951-10-30
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Expires: 1968-07-29
Abstract
No abstract record available.
Inventors
- 👤 Homan Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:27
CPC Classifications
G; G06; G06C; G06C23/00; G06C23/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1737907A
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US1964478A
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US2215263A
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US2347425A
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US2370730A
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US1923685A
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US2251100A
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US2456980A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-29 | 1955-04-30 | 1955-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-29 | 1959-04-30 | 1959-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-29 | 1963-04-30 | 1963-10-30 | $7700.00 | Window Closed / Lapsed |