US3381276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Computer systems
Assignee: TELEPHONE COMPUTER Co R&D PARTNERSHIP
•
Filing: 1965-09-15
•
Granted: 1968-04-30
•
Expires: 1985-09-15
Abstract
No abstract record available.
Inventors
- 👤 James Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:24
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/16; H; H03; H03M; H03M11/00; H03M11/02; H03M11/04; H03M11/06; H03M11/08; H04; H04M; H04M11/00; H04M11/06; H04M11/066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2933563A
Cited
US3076059A
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US3184554A
Cited
US3158317A
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US3187321A
Cited
US3200192A
Cited
US3240427A
Cited
US3301957A
Cited
US3299210A
Cited
US3334190A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |