US2969042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cylinder adder
Assignee: International Business Machines Corp
•
Filing: 1957-07-26
•
Granted: 1961-01-24
•
Expires: 1977-07-26
Abstract
No abstract record available.
Inventors
- 👤 Frank A Litz
- 👤 John J Lynott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:27
CPC Classifications
G; G06; G06K; G06K15/00; G06K15/02; G06K15/04; F; F15; F15B; F15B11/00; F15B11/08; F15B11/12; G06G; G06G5/00; Y; Y10; Y10S; Y10S91/00; Y10S91/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US691692A
Cited
DE522107C
Cited
US2197867A
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US2077962A
Cited
US2481648A
Cited
US2507498A
Cited
US2659531A
Cited
GB705403A
Cited
US2714906A
Cited
US2916205A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-24 | 1964-07-25 | 1965-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-24 | 1968-07-25 | 1969-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-24 | 1972-07-25 | 1973-01-24 | $7700.00 | Window Closed / Lapsed |