US2906854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas-shielded arc torches
Assignee: Union Carbide Corp
•
Filing: 1957-04-26
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Granted: 1959-09-29
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Expires: 1977-04-26
Abstract
No abstract record available.
Inventors
- 👤 Clifford W Hill
- 👤 John S Kane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:30
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/16; B23K9/167; B23K9/1675
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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 |