US3230340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arc welding apparatus and method of arc welding
Assignee: Westinghouse Electric Corp
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Filing: 1963-04-29
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Granted: 1966-01-18
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Expires: 1983-04-29
Abstract
No abstract record available.
Inventors
- 👤 Raymond H Glatthorn
- 👤 Franklin W Coffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:31
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/02; B23K9/028; B23K9/0282; B23K9/0286
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
83 words
APPARATUS FOR ARC WELDING EXTERNALLY A JOINT BETWEEN A TUBULAR MEMBER AND AN ABUTTING MEMBER, SAID JOINT LYING GENERALLY IN A PLANE, THE SAID APPARATUS COMPRISING A MANDREL TO BE INSERTED IN SAID TUBULAR MEMBER GENERALLY COAXIAL WITH SAID TUBULAR MEMBER, A GEAR SUSPENDED FROM SAID MANDREL COAXIAL WITH SAID TUBULAR MEMBER AND GENERALLY IN THE PLANE OF SAID JOINT, AN ELECTRODE EXTENDING RADIALLY FROM SAID GEAR TOWARDS SAID JOINT, AND MEANS FOR ROTATING SAID GEAR TO ROTATE SAID ELECTRODE ABOUT SAID JOINT.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |