US3500148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multipurpose integrated circuit arrangement
Assignee: AT&T Inc
•
Filing: 1968-08-28
•
Granted: 1970-03-10
•
Expires: 1988-08-28
Abstract
No abstract record available.
Inventors
- 👤 Ronald V Gunther
- 👤 Reginald A Kaenel
- 👤 Martin P Lepselter
- 👤 James L Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:09
CPC Classifications
H; H10; H10W; H10W20/00; H10W20/40; H10W20/49; G; G06; G06F; G06F7/00; G06F7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3423646A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-09 | 1973-09-08 | 1974-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-09 | 1977-09-08 | 1978-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-09 | 1981-09-08 | 1982-03-10 | $7700.00 | Window Closed / Lapsed |