Patent US1158487A successfully refreshed from Google Patents.
US1158487A
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US
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Resistance element.
Assignee: Westinghouse Electric Corp
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Filing: 1910-06-25
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Granted: 1915-11-02
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Expires: 1930-06-25
Abstract
No abstract record available.
Inventors
- 👤 William S Hadaway Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:51
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0227; H05B1/0252; H05B1/0255; H05B2203/00; H05B2203/002; H05B2203/003
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) | 1918-11-01 | 1919-05-03 | 1919-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1922-11-01 | 1923-05-03 | 1923-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1926-11-01 | 1927-05-03 | 1927-11-02 | $7700.00 | Window Closed / Lapsed |