US2873355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas shielded metal arc welding torch
Assignee: Union Carbide Corp
•
Filing: 1957-04-05
•
Granted: 1959-02-10
•
Expires: 1977-04-05
Abstract
No abstract record available.
Inventors
- 👤 Peter R Schaefer
- 👤 Thaddeus J Wojciak
- 👤 Stanley H Royer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:36
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/24; B23K9/28; B23K9/29; B23K9/291; B23K9/295
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE14927E
Cited
US2236707A
Cited
US2299785A
Cited
US2572084A
Cited
US2510205A
Cited
US2606267A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-09 | 1962-08-11 | 1963-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-09 | 1966-08-11 | 1967-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-09 | 1970-08-11 | 1971-02-10 | $7700.00 | Window Closed / Lapsed |