US2695945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refractory metal electrode for inert gas-shielded arc welding
Assignee: Union Carbide Corp
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Filing: 1952-11-04
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Granted: 1954-11-30
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Expires: 1972-11-04
Abstract
No abstract record available.
Inventors
- 👤 Louis A Conant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:06
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/222
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A GAS-SHIELDED ARC WELDING ELECTRODE COMPOSED OF REFRACTORY METAL SUCH AS TUNGSTEN HAVING MIXED THEREIN ABOUT 2% OF FINELY-DIVIDED YTTRIUM OXIDE.
Claim 2
Dependent Claim
21 words
A GAS-SHIELDED ARC WELDING ELECTRODE COMPOSED OF REFRACTORY METAL SUCH AS TUNGSTEN HAVING MIXED THEREIN ABOUT 2% OF FINELY-DIVIDED YTTRIUM OXIDE.
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) | 1957-11-29 | 1958-05-31 | 1958-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-29 | 1962-05-31 | 1962-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-29 | 1966-05-31 | 1966-11-30 | $7700.00 | Window Closed / Lapsed |