Patent US2719900A successfully refreshed from Google Patents.
US2719900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High speed-sheet metal inert-gas shielded arc-welding
Assignee: Union Carbide Corp
•
Filing: 1952-03-25
•
Granted: 1955-10-04
•
Expires: 1972-03-25
Abstract
No abstract record available.
Inventors
- 👤 John A Persson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:07
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/0026; B23K9/0035
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
PROCESS OF ARC WELDING SHEET METAL PROGRESSIVELY ALONG A SEAM AT A SPEED OF AT LEAST 1,000 INCHES PER MINUTE, WHICH COMPRISES FLANGING AT LEAST ONE EDGE OF THE STOCK TO BE WELDED SO THAT THE RESULTING FLANGE FORMS AN INCLUDED ANGLE OF LESS THAN 90* WITH THE SHEET TO WHICH IT IS ATTACHED, BUTTING SUCH EDGES, AND PROGRESSIVELY MELTING SUCH FLANGE AND THE ADJACENT METAL ALONG THE SEAM WITH A METAL FUSING ELECTRIC ARC, SHIELDING THE LATTER WITH
Claim 2
Dependent Claim
79 words
PROCESS OF ARC WELDING SHEET METAL PROGRESSIVELY ALONG A SEAM AT A SPEED OF AT LEAST 1,000 INCHES PER MINUTE, WHICH COMPRISES FLANGING AT LEAST ONE EDGE OF THE STOCK TO BE WELDED SO THAT THE RESULTING FLANGE FORMS AN INCLUDED ANGLE OF LESS THAN 90* WITH THE SHEET TO WHICH IT IS ATTACHED, BUTTING SUCH EDGES, AND PROGRESSIVELY MELTING SUCH FLANGE AND THE ADJACENT METAL ALONG THE SEAM WITH A METAL FUSING ELECTRIC ARC, SHIELDING THE LATTER WITH
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-03 | 1959-04-04 | 1959-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-03 | 1963-04-04 | 1963-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-03 | 1967-04-04 | 1967-10-04 | $7700.00 | Window Closed / Lapsed |