US2727685A
Expired / Lapsed
US
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Assignee: International Business Machines Corp
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Filing: 1952-11-15
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Granted: 1955-12-20
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Expires: 1972-11-15
Abstract
No abstract record available.
Inventors
- 👤 Edward S Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:04
CPC Classifications
G; G11; G11C; G11C13/00; G11C13/04; G11C13/06; G06; G06F; G06F7/00; G06F7/02; G06F7/06; G06K; G06K7/00; G06K7/10; G06K7/10544; G06K7/10821; G06K7/1093; G11C11/00; G11C11/21; G11C11/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2203353A
Cited
US2629827A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-19 | 1959-06-20 | 1959-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-19 | 1963-06-20 | 1963-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-19 | 1967-06-20 | 1967-12-20 | $7700.00 | Window Closed / Lapsed |