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US2954927A
Expired / Lapsed
US
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Electronic calculating apparatus
Assignee: International Computers and Tabulators Ltd
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Filing: 1954-05-06
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Granted: 1960-10-04
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Expires: 1974-05-06
Abstract
No abstract record available.
Inventors
- 👤 Woods-Hill William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:10
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/491; G06F7/4915
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2213565A
Cited
US2419502A
Cited
US2544126A
Cited
US2623115A
Cited
US2623171A
Cited
US2675177A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-04 | 1964-04-04 | 1964-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-04 | 1968-04-04 | 1968-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-04 | 1972-04-04 | 1972-10-04 | $7700.00 | Window Closed / Lapsed |