Patent US2745934A successfully refreshed from Google Patents.
US2745934A
Expired / Lapsed
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Inert gas shielded magnetic field controlled electric arc metal working apparatus
Assignee: Union Carbide Corp
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Filing: 1953-04-30
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Granted: 1956-05-15
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Expires: 1973-04-30
Abstract
No abstract record available.
Inventors
- 👤 John L Curtin
- 👤 Donald M Yenni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:55
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/06; B23K9/073; B23K9/0737
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
A GAS CUP FOR INERT GAS SHIELDED ELECTRIC ARC-METAL WORKING TORCHES, CONSISTING OF A GAS NOZZLE HAVING INCORPORATED THEREWITH A HORSESHOE MAGNET THE CURVATURE OF WHICH SUBSTANTIALLY COINCIDES WITH THAT OF THE NOZZLE.
Claim 2
Dependent Claim
33 words
A GAS CUP FOR INERT GAS SHIELDED ELECTRIC ARC-METAL WORKING TORCHES, CONSISTING OF A GAS NOZZLE HAVING INCORPORATED THEREWITH A HORSESHOE MAGNET THE CURVATURE OF WHICH SUBSTANTIALLY COINCIDES WITH THAT OF THE NOZZLE.
References Cited (Backward Citations)
US1740381A
Cited
US2475183A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |