Patent US2939317A successfully refreshed from Google Patents.
US3411141A
Expired / Lapsed
US
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Input/output system
Assignee: TA ACQUISITION CORP
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Filing: 1965-10-23
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Granted: 1968-11-12
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Expires: 1985-10-23
Abstract
No abstract record available.
Inventors
- 👤 Donald R Bernier
- 👤 Falk Helmut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:40
CPC Classifications
G; G06; G06F; G06F3/00; G06F1/00; G06F1/04; H; H03; H03M; H03M7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3008127A
Cited
US3204221A
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US3164824A
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US3228004A
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US3121860A
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US3249923A
Cited
US3258749A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |