US3534149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Communication cable systems
Assignee: AT&T Inc
•
Filing: 1966-12-06
•
Granted: 1970-10-13
•
Expires: 1986-12-06
Abstract
No abstract record available.
Inventors
- 👤 John M Peacock
- 👤 Robert M Riley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:16
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/17; H01B7/28; H01B7/282; H01B7/2825
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA678408A
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US2957038A
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US3031523A
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BE644973A
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US3233036A
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US3272911A
Cited
FR1419843A
Cited
US3344228A
Cited
US3315025A
Cited
US3379821A
Cited
US3339007A
Cited
US3340353A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-12 | 1974-04-13 | 1974-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-12 | 1978-04-13 | 1978-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-12 | 1982-04-13 | 1982-10-13 | $7700.00 | Window Closed / Lapsed |