US3290477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding means and method
Assignee: Individual
•
Filing: 1963-07-19
•
Granted: 1966-12-06
•
Expires: 1983-07-19
Abstract
No abstract record available.
Inventors
- 👤 John A Chopp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:39
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A DEVICE FOR WELDING TOGETHER A PORTION OF THE WALLS OF A GENERALLY ELONGATED TUBUALR METAL ARTICLE TO PROVIDE AT SAID PORTION SEALED CLOSURE OF SAID ARTICLE COMPRISING IN COMBINATION, A HOUSING HAVING A WELDING CHAMBER THEREIN, INSULATING MEANS DISPOSED WITHIN THE CHAMBER AND PENETRATED BY SAID TUBUALR ARTICLE, SELECTIVELY ACTUABLE MEANS FOR ENGAGING SAID ARTICLE TO RESTRAIN MOVEMENT THEREOF, MEANS FOR PASSING AN ELECTRICAL CURRENT GENERALLY LENGTHWISE THROUGH SAID TUBULAR ARTICLE AND PORTION FOR HEATING SAID PORTION, AND RESILIENTLY DEFORMABLE MEANS INTERPOSED WITHIN THE INSULATING MEANS FOR STRESSING SAID
Claim 2
Independent Claim
90 words
A DEVICE FOR WELDING TOGETHER A PORTION OF THE WALLS OF A GENERALLY ELONGATED TUBUALR METAL ARTICLE TO PROVIDE AT SAID PORTION SEALED CLOSURE OF SAID ARTICLE COMPRISING IN COMBINATION, A HOUSING HAVING A WELDING CHAMBER THEREIN, INSULATING MEANS DISPOSED WITHIN THE CHAMBER AND PENETRATED BY SAID TUBUALR ARTICLE, SELECTIVELY ACTUABLE MEANS FOR ENGAGING SAID ARTICLE TO RESTRAIN MOVEMENT THEREOF, MEANS FOR PASSING AN ELECTRICAL CURRENT GENERALLY LENGTHWISE THROUGH SAID TUBULAR ARTICLE AND PORTION FOR HEATING SAID PORTION, AND RESILIENTLY DEFORMABLE MEANS INTERPOSED WITHIN THE INSULATING MEANS FOR STRESSING SAID
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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) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |