Patent US2880314A successfully refreshed from Google Patents.
US2880314A
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Assignee: International Business Machines Corp
•
Filing: 1953-11-16
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Granted: 1959-03-31
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Expires: 1973-11-16
Abstract
No abstract record available.
Inventors
- 👤 Mortimer D Rogers
- 👤 Jr Monroe M Dickinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:21
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2465624A
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US2426658A
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US2583552A
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US2600264A
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US2640954A
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US2697808A
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US2610789A
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US2530642A
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US2694143A
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US2617588A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |