Patent US1173370A successfully refreshed from Google Patents.
US1173370A
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US
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Arc-light electrode.
Assignee: National Carbon Co Inc
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Filing: 1914-06-13
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Granted: 1916-02-29
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Expires: 1934-06-13
Abstract
No abstract record available.
Inventors
- 👤 William R Mott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:55
CPC Classifications
H; H01; H01J; H01J1/00; H01J1/02; H01J1/13; H01J1/14; H01T; H01T13/00; H01T13/40; H01T13/41
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) | 1919-02-28 | 1919-08-30 | 1920-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1923-02-28 | 1923-08-30 | 1924-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1927-02-28 | 1927-08-30 | 1928-02-29 | $7700.00 | Window Closed / Lapsed |