Patent US3516065A successfully refreshed from Google Patents.
US3516065A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital transmission system
Assignee: International Business Machines Corp
•
Filing: 1967-01-13
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Granted: 1970-06-02
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Expires: 1987-01-13
Abstract
No abstract record available.
Inventors
- 👤 Murray H Bolt
- 👤 Howard H Nick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:23
CPC Classifications
G; G06; G06F; G06F13/00; G06F13/38; G06F13/40; G06F13/4063; G06F13/4068; G06F13/4072
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3086178A
Cited
US3428918A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |