US2723378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmission line system
Assignee: International Standard Electric Corp
•
Filing: 1950-03-27
•
Granted: 1955-11-08
•
Expires: 1970-03-27
Abstract
No abstract record available.
Inventors
- 👤 Andre G Clavier
- 👤 David L Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:10
CPC Classifications
H; H04; H04B; H04B3/00; H04B3/54; H01; H01P; H01P1/00; H01P1/20; H01P3/00; H01P3/10; H04B3/52; H04B3/56; H04B2203/00; H04B2203/54; H04B2203/5462; H04B2203/5483; H04B2203/5487
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB287503A
Cited
US2097300A
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US2279697A
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US2207845A
Cited
US2292496A
Cited
US2438795A
Cited
US2510271A
Cited
US2575571A
Cited
US2617880A
Cited
US2511524A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-07 | 1959-05-09 | 1959-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-07 | 1963-05-09 | 1963-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-07 | 1967-05-09 | 1967-11-08 | $7700.00 | Window Closed / Lapsed |