Patent US3492062A successfully refreshed from Google Patents.
US3208049A
Expired / Lapsed
US
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Synchronous transmitter-receiver
Assignee: International Business Machines Corp
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Filing: 1960-08-25
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Granted: 1965-09-21
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Expires: 1980-08-25
Abstract
No abstract record available.
Inventors
- 👤 Sr Charles R Doty
- 👤 Vincent H Cackowski
- 👤 Evanick George
- 👤 Roy J Smith
- 👤 Lawrence A Tate
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:17
CPC Classifications
H; H04; H04L; H04L7/00; H04L7/02; H04L25/00; H04L25/02; H04L25/0262
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |