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US1186770A
Expired / Lapsed
US
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Circuit-interrupter.
Assignee: Westinghouse Electric Corp
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Filing: 1911-12-26
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Granted: 1916-06-13
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Expires: 1931-12-26
Abstract
No abstract record available.
Inventors
- 👤 Fletcher D Hallock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:39
CPC Classifications
H; H01; H01H; H01H77/00; H01H77/02; H01H77/10; H01H77/102; H01H77/104
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) | 1919-06-13 | 1919-12-13 | 1920-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1923-06-13 | 1923-12-13 | 1924-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1927-06-13 | 1927-12-13 | 1928-06-13 | $7700.00 | Window Closed / Lapsed |