US2889480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for assisting the ignition of a welding arc and stabilizing the same
Assignee: Air Liquide SA
•
Filing: 1954-07-28
•
Granted: 1959-06-02
•
Expires: 1974-07-28
Abstract
No abstract record available.
Inventors
- 👤 Soulary Pierre
- 👤 Moignet Jacques
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:49
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/06; B23K9/073; B23K9/0738; B23K9/067; B23K9/0672; B23K9/0673; B23K9/0732
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2440154A
Cited
US655176A
Cited
US2399331A
Cited
US2478119A
Cited
US2470668A
Cited
US2674708A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-01 | 1962-12-01 | 1963-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-01 | 1966-12-01 | 1967-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-01 | 1970-12-01 | 1971-06-02 | $7700.00 | Window Closed / Lapsed |