US3448202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enclosed electric power transmission conductors
Assignee: Westinghouse Electric Corp
•
Filing: 1967-12-11
•
Granted: 1969-06-03
•
Expires: 1987-12-11
Abstract
No abstract record available.
Inventors
- 👤 Daniel L Whitehead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:39
CPC Classifications
H; H01; H01B; H01B9/00; H01B9/06; H01B9/0644; H01B9/0666; H01B9/0672
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1885195A
Cited
FR693860A
Cited
GB397081A
Cited
GB498116A
Cited
US2216010A
Cited
US2221671A
Cited
FR856241A
Cited
US2701864A
Cited
US2741321A
Cited
US3325583A
Cited
US3356785A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |