Patent US1344713A successfully refreshed from Google Patents.
US1344713A
Expired / Lapsed
US
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Reactance-coil
Assignee: Westinghouse Electric Corp
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Filing: 1915-12-02
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Granted: 1920-06-29
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Expires: 1935-12-02
Abstract
No abstract record available.
Inventors
- 👤 John F Peters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:07
CPC Classifications
H; H02; H02H; H02H9/00; H02H9/02; H02H9/021
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) | 1923-06-29 | 1923-12-29 | 1924-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-06-29 | 1927-12-29 | 1928-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-06-29 | 1931-12-29 | 1932-06-29 | $7700.00 | Window Closed / Lapsed |