US3500185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode probe system monitoring diametrically opposed conductor cable sections to measure sheath thickness and eccentricity
Assignee: AT&T Inc
•
Filing: 1967-06-21
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Granted: 1970-03-10
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Expires: 1987-06-21
Abstract
No abstract record available.
Inventors
- 👤 Walter Trowbridge Eppler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:10
CPC Classifications
G; G01; G01R; G01R31/00; G01R31/50; G01R31/58; G01R31/59
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2177528A
Cited
US2417062A
Cited
US2721975A
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US2898550A
Cited
US2872640A
Cited
US3330159A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-09 | 1973-09-08 | 1974-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-09 | 1977-09-08 | 1978-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-09 | 1981-09-08 | 1982-03-10 | $7700.00 | Window Closed / Lapsed |