US2689888A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-voltage transmission line
Assignee: Merlin Gerin SA
•
Filing: 1951-03-06
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Granted: 1954-09-21
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Expires: 1971-03-06
Abstract
No abstract record available.
Inventors
- 👤 Latour Andre
- 👤 Viboud Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:44
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/008; H02; H02B; H02B5/00; H02B5/02; H01H33/02; H01H2033/028; H01H33/04; H01H33/12; H01H33/121; H01H33/125; H01H33/128; H01H33/14; H01H33/28; H01H33/30; H01H33/302
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) | 1957-09-20 | 1958-03-22 | 1958-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-20 | 1962-03-22 | 1962-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-20 | 1966-03-22 | 1966-09-21 | $7700.00 | Window Closed / Lapsed |