US2906857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas shielded arc cleaning
Assignee: Union Carbide Corp
•
Filing: 1954-08-09
•
Granted: 1959-09-29
•
Expires: 1974-08-09
Abstract
No abstract record available.
Inventors
- 👤 Ontario H Nestor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:34
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/16; B23K9/167
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
BE509027A
Cited
US2052796A
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US2053417A
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US2273819A
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US2370467A
Cited
US2446929A
Cited
US2587331A
Cited
US2646492A
Cited
GB709533A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |