Patent US1493864A successfully refreshed from Google Patents.
US1493864A
Expired / Lapsed
US
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Cam-lever electrode holder
Assignee: Westinghouse Electric Corp
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Filing: 1921-03-30
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Granted: 1924-05-13
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Expires: 1941-03-30
Abstract
No abstract record available.
Inventors
- 👤 Paul L Orr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:20
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/24; B23K9/28; B23K9/282; F; F16; F16B; F16B2/00; F16B2/02; F16B2/18; F16B2/185; F16B9/00; F16B9/05; F16B9/054; F16B9/056
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) | 1927-05-13 | 1927-11-12 | 1928-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-05-13 | 1931-11-12 | 1932-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-05-13 | 1935-11-12 | 1936-05-13 | $7700.00 | Window Closed / Lapsed |