Patent US3296409A successfully refreshed from Google Patents.
US3296409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resistance welding apparatus
Assignee: Individual
•
Filing: 1965-10-23
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Granted: 1967-01-03
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Expires: 1985-10-23
Abstract
No abstract record available.
Inventors
- 👤 Charles A Schwartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:40
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
IN AN ELECTRICAL WELDING APPARATUS, THE COMBINATION OF AN ELECTRICAL TRANSFORMER COIL STRUCTURE, A FIRST WELDING ELECTRODE SECURED TO AND IN FIXED RELATION WITH SAID TRANSFORMER AND BODILY MOVABLE THEREWITH FAR ENGAGING A WORKPIECE SURFACE, A SECOND WELDING ELECTRODE SLIDABLY MOUNTED ON SAID TRANSFORMER IN LATERALLY SPACED RELATIONSHIP TO SAID FIRST ELECTRODE FOR ENGAGING THE SAME SIDE OF THE WORKPIECE SURFACE AND MOVABLE INTO OR OUT OF COPLANAR SURFACE-ENGAGING ALIGNMENT WITH SAID FIRST ELECTRODE, AND MEANS OPERATIVELY ASSOCIATED WITH SAID ELEC-
Claim 2
Dependent Claim
81 words
IN AN ELECTRICAL WELDING APPARATUS, THE COMBINATION OF AN ELECTRICAL TRANSFORMER COIL STRUCTURE, A FIRST WELDING ELECTRODE SECURED TO AND IN FIXED RELATION WITH SAID TRANSFORMER AND BODILY MOVABLE THEREWITH FAR ENGAGING A WORKPIECE SURFACE, A SECOND WELDING ELECTRODE SLIDABLY MOUNTED ON SAID TRANSFORMER IN LATERALLY SPACED RELATIONSHIP TO SAID FIRST ELECTRODE FOR ENGAGING THE SAME SIDE OF THE WORKPIECE SURFACE AND MOVABLE INTO OR OUT OF COPLANAR SURFACE-ENGAGING ALIGNMENT WITH SAID FIRST ELECTRODE, AND MEANS OPERATIVELY ASSOCIATED WITH SAID ELEC-
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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) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |