Patent US2862098A successfully refreshed from Google Patents.
US2862098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arc welding
Assignee: Cook Electric Co
•
Filing: 1955-01-31
•
Granted: 1958-11-25
•
Expires: 1975-01-31
Abstract
No abstract record available.
Inventors
- 👤 Walter C Hasselhorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:44
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/16; B23K9/164; B23K9/23
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
IN AN ARC WELDING APPARATUS FOR WELDING METALS LIKE TITANIUM, ZIRCONIUM, TANTALUM, ETC., COMPRISING A SOURCE OF INERT GAS SUPPLY, A TORCH INCLUDING A NOZZLE, AN ELECTRODE, AND A CONNECTION FOR SAID INERT GAS BETWEEN SAID SOURCE OF SUPPLY AND SAID TORCH, A VALVE IN SAID CONNECTION, A CONTROL FOR SAID VALVE, A HEAT EXCHANGER IN SAID
Claim 2
Dependent Claim
57 words
IN AN ARC WELDING APPARATUS FOR WELDING METALS LIKE TITANIUM, ZIRCONIUM, TANTALUM, ETC., COMPRISING A SOURCE OF INERT GAS SUPPLY, A TORCH INCLUDING A NOZZLE, AN ELECTRODE, AND A CONNECTION FOR SAID INERT GAS BETWEEN SAID SOURCE OF SUPPLY AND SAID TORCH, A VALVE IN SAID CONNECTION, A CONTROL FOR SAID VALVE, A HEAT EXCHANGER IN SAID
References Cited (Backward Citations)
US2497631A
Cited
US2510207A
Cited
US2576793A
Cited
US2777928A
Cited
US2630513A
Cited
US2747065A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-24 | 1962-05-26 | 1962-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-24 | 1966-05-26 | 1966-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-24 | 1970-05-26 | 1970-11-25 | $7700.00 | Window Closed / Lapsed |