US2745935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for arc welding
Assignee: Airco Inc
•
Filing: 1952-05-27
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Granted: 1956-05-15
•
Expires: 1972-05-27
Abstract
No abstract record available.
Inventors
- 👤 Richard A Powley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:19
CPC Classifications
B; B23; B23K; B23K31/00; B23K31/02; B23K31/025
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
74 words
A METHOD OF SURFACING A FERROUS ARTICLE WITH ALUMINUM BRONZE HAVING A BRINNELL HARDNESS RATING OF AT LEAST 300 WHICH COMPRISES CIRCULATING A COOLING LIQUID IN DIRECT HEAT EXCHANGE RELATION WITH SAID FERROUS ARTICLE AND DEPOSITING SAID ALUMINUM BRONZE ON SAID ARTICLE BY AN INERT GAS SHIELDED METAL ARC WELDING PROCESS USING A BARE CONSUMABLE ALUMINUM BRONZE WELDING ELECTRODE WHILE SAID ARTICLE IS MAINTAINED IN DIRECT HEAT EXCHANGE RELATION WITH SAID CIRCULATING COOLING LIQUID.
References Cited (Backward Citations)
US1516471A
Cited
US1550651A
Cited
US1717530A
Cited
US1640443A
Cited
US2299747A
Cited
US2250561A
Cited
US2295702A
Cited
US2277654A
Cited
US2504868A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |