US3434117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic transmission speed selection control for a data transmission system
Assignee: International Business Machines Corp
•
Filing: 1967-04-24
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Granted: 1969-03-18
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Expires: 1987-04-24
Abstract
No abstract record available.
Inventors
- 👤 Robert G Gibson
- 👤 David R Hughes
- 👤 Richard L Leavenworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:07
CPC Classifications
H; H04; H04L; H04L12/00; H04L25/00; H04L25/02; H04L25/05; H04L5/00; H04L5/14; H04L5/1438; H04L5/1446
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2006582A
Cited
US2956126A
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US2934604A
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US3139607A
Cited
US3281527A
Cited
US3307152A
Cited
US3378820A
Cited
US3345614A
Cited
US3359543A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |