US2634064A
Expired / Lapsed
US
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Assignee: International Business Machines Corp
•
Filing: 1947-04-17
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Granted: 1953-04-07
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Expires: 1967-04-17
Abstract
No abstract record available.
Inventors
- 👤 Fred M Carroll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:53
CPC Classifications
G; G06; G06K; G06K13/00; G06K13/18; G06K13/26; Y; Y10; Y10S; Y10S242/00; Y10S242/909
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1042430A
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US779367A
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US1282131A
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US1380837A
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US1331579A
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US1549585A
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US1808476A
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US1890026A
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US2186032A
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US2321812A
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US2500275A
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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) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |