US3047715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas shielded arc welding torch
Assignee: Union Carbide Corp
•
Filing: 1959-05-20
•
Granted: 1962-07-31
•
Expires: 1979-05-20
Abstract
No abstract record available.
Inventors
- 👤 Frank J Pilia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:07
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/007; B23K9/24; B23K9/28; B23K9/29; B23K9/291
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US662806A
Cited
US2358158A
Cited
US2361896A
Cited
US2360160A
Cited
US2490593A
Cited
US2754395A
Cited
US2727970A
Cited
US2903567A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |