Patent US2985714A successfully refreshed from Google Patents.
US2985714A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper tape transmission system
Assignee: International Business Machines Corp
•
Filing: 1957-06-13
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Granted: 1961-05-23
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Expires: 1977-06-13
Abstract
No abstract record available.
Inventors
- 👤 Raymond A Barbeau
- 👤 William L Stahl
- 👤 Paul M Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:35
CPC Classifications
H; H04; H04L; H04L1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2706215A
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US2730700A
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US2680240A
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US2689950A
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US2682573A
Cited
FR1090558A
Cited
US2702380A
Cited
US2850718A
Cited
US2854653A
Cited
US2828362A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |