US3027082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for adding and multiplying
Assignee: International Business Machines Corp
•
Filing: 1954-02-16
•
Granted: 1962-03-27
•
Expires: 1974-02-16
Abstract
No abstract record available.
Inventors
- 👤 Chao Shih Chieh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:01
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/57; G06F7/491; G06F7/498; G06F7/4981
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2176932A
Cited
US2272070A
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US2442428A
Cited
US2641407A
Cited
US2616965A
Cited
US2784907A
Cited
US2738504A
Cited
US2700501A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-26 | 1965-09-25 | 1966-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-26 | 1969-09-25 | 1970-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-26 | 1973-09-25 | 1974-03-27 | $7700.00 | Window Closed / Lapsed |