US2414200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trolley conductor section insulator with magnetic blowout
Assignee: Westinghouse Electric Corp
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Filing: 1944-02-10
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Granted: 1947-01-14
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Expires: 1964-02-10
Abstract
No abstract record available.
Inventors
- 👤 Raymond P Hanna
- 👤 Norman H Willby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:54
CPC Classifications
B; B60; B60M; B60M1/00; B60M1/12; B60M1/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-01-13 | 1950-07-15 | 1951-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-01-13 | 1954-07-15 | 1955-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-01-13 | 1958-07-15 | 1959-01-14 | $7700.00 | Window Closed / Lapsed |