US2658133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode holder
Assignee: Columbiana Boiler Co
•
Filing: 1950-07-28
•
Granted: 1953-11-03
•
Expires: 1970-07-28
Abstract
No abstract record available.
Inventors
- 👤 James R Barrow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:46
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/24; B23K9/28; B23K9/282; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44291; Y10T24/44376; Y10T24/44385; Y10T24/44444; Y10T24/44453
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1384439A
Cited
GB408364A
Cited
US2003196A
Cited
US2404437A
Cited
GB564229A
Cited
US2386399A
Cited
GB580452A
Cited
US2400903A
Cited
US2387888A
Cited
GB623304A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-02 | 1957-05-04 | 1957-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-02 | 1961-05-04 | 1961-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-02 | 1965-05-04 | 1965-11-03 | $7700.00 | Window Closed / Lapsed |