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US3527989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit assembly
Assignee: International Business Machines Corp
•
Filing: 1969-02-07
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Granted: 1970-09-08
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Expires: 1989-02-07
Abstract
No abstract record available.
Inventors
- 👤 David E Cuzner
- 👤 Patrick J Mulholland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:03
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/40; H10W40/43; H10W90/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2877388A
Cited
US3141999A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |