US1572534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sectional electrode with locked screw-thread joint
Assignee: National Carbon Co Inc
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Filing: 1923-10-27
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Granted: 1926-02-09
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Expires: 1943-10-27
Abstract
No abstract record available.
Inventors
- 👤 Arthur T Hinckley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:24
CPC Classifications
H; H05; H05B; H05B7/00; H05B7/02; H05B7/14; B; B23; B23K; B23K35/00; B23K35/02; B23K35/0255; B23K35/0261; F; F16; F16B; F16B2200/00; F16B2200/69; F16B2200/71; Y; Y02; Y02P; Y02P10/00; Y02P10/25; Y10; Y10S; Y10S403/00; Y10S403/05; Y10S411/00; Y10S411/924; Y10S411/929; Y10S411/94; Y10S411/945; Y10T; Y10T279/00; Y10T279/17; Y10T279/17931; Y10T279/17941; Y10T403/00; Y10T403/55; Y10T403/556
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) | 1929-02-08 | 1929-08-10 | 1930-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-02-08 | 1933-08-10 | 1934-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-02-08 | 1937-08-10 | 1938-02-09 | $7700.00 | Window Closed / Lapsed |