US3459927A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for checking logical connective circuits
Assignee: International Business Machines Corp
•
Filing: 1965-10-18
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Granted: 1969-08-05
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Expires: 1985-10-18
Abstract
No abstract record available.
Inventors
- 👤 Alan R Geller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:36
CPC Classifications
G; G06; G06F; G06F11/00; G06F11/07; G06F11/08; G06F11/10; H; H03; H03K; H03K19/00; H03K19/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2837278A
Cited
US2875951A
Cited
US3011151A
Cited
US3114130A
Cited
US3188609A
Cited
US3196259A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-04 | 1973-02-03 | 1973-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-04 | 1977-02-03 | 1977-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-04 | 1981-02-03 | 1981-08-05 | $7700.00 | Window Closed / Lapsed |