US2685632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas blanketed arc welding torch
Assignee: Union Carbide Corp
•
Filing: 1951-07-17
•
Granted: 1954-08-03
•
Expires: 1971-07-17
Abstract
No abstract record available.
Inventors
- 👤 Edward R Behnke
- 👤 Arthur P Scheller
- 👤 Frank J Pilia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:51
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/24; B23K9/28; B23K9/29; B23K9/291; B23K9/285
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1946302A
Cited
US2093821A
Cited
US2468807A
Cited
US2512706A
Cited
US2512707A
Cited
US2527235A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-02 | 1958-02-01 | 1958-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-02 | 1962-02-01 | 1962-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-02 | 1966-02-01 | 1966-08-03 | $7700.00 | Window Closed / Lapsed |