Patent US2825703A successfully refreshed from Google Patents.
US2825703A
Expired / Lapsed
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Tungsten arc electrode
Assignee: Union Carbide Corp
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Filing: 1955-12-06
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Granted: 1958-03-04
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Expires: 1975-12-06
Abstract
No abstract record available.
Inventors
- 👤 Louis A Conant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:11
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/222
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
A NON-CONSUMABLE INERT GAS-SHIELDED ARC ELECTRODE THAT IS COMPOSED OF SWAGED TUNGSTEN HAVING DISPERSED THEREIN FINELY DIVIDED CERIA IN AN AMOUNT BY WEIGHT OF 0.01% TO 0.30% THEREOF.
Claim 2
Dependent Claim
28 words
A NON-CONSUMABLE INERT GAS-SHIELDED ARC ELECTRODE THAT IS COMPOSED OF SWAGED TUNGSTEN HAVING DISPERSED THEREIN FINELY DIVIDED CERIA IN AN AMOUNT BY WEIGHT OF 0.01% TO 0.30% THEREOF.
References Cited (Backward Citations)
US2744183A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-03 | 1961-09-02 | 1962-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-03 | 1965-09-02 | 1966-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-03 | 1969-09-02 | 1970-03-04 | $7700.00 | Window Closed / Lapsed |