Patent US4180146A successfully refreshed from Google Patents.
Patent US2990301A successfully refreshed from Google Patents.
US2990301A
Expired / Lapsed
US
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Arc welding electrode
Assignee: Airco Inc
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Filing: 1957-10-23
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Granted: 1961-06-27
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Expires: 1977-10-23
Abstract
No abstract record available.
Inventors
- 👤 Jr August Clemens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:22
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/3053; B23K35/308; B23K35/3086; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12063; Y10T428/12104; Y10T428/12111; Y10T428/12125; Y10T428/12132; Y10T428/12493; Y10T428/12771; Y10T428/12806; Y10T428/12826; Y10T428/12847; Y10T428/12854; Y10T428/12861; Y10T428/12951; Y10T428/12958; Y10T428/12965
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A COATED ELECTRODE ADAPTED FOR ELECTRIC ARC WELDING STAINLESS STEELS, SAID ELECTRODE COMPRISING A CORE WIRE OF STEEL HAVING NOT MORE THAN .07% CARBON, .40% MANGANESE AND .02% PHOSPHORUS, SAID CORE BEING COATED WITH A COMPOSITION CONTAINING IN APPROXIMATE RANGES 25.5-39.5% CHROMIUM AND 2.5-9.0% CARBON- AND PHOSPHORUS-FREE MANGANESE POWDER, THE PRESENCE OF THE LATTER PERMITTING THE INCLUSION OF A FERRO-FORM OF ALLOYING INGREDIENT WITHOUT CAUSING AN EXCESS OF CARBON AND PHOSPHORUS IN THE WELD, THE REMAINDER BEING FLUXING, SLAGFORMING, BINDER, REDUCING, AND ARC STABILIZER AGENTS, THE WELD METAL DEPOSITED BY THE COATED ELECTRODE CONTAINING NOT MORE THAN .08 CARBON, 2.50 MANGANESE, AND .04 PHOSPHORUS.
Claim 2
Dependent Claim
104 words
A COATED ELECTRODE ADAPTED FOR ELECTRIC ARC WELDING STAINLESS STEELS, SAID ELECTRODE COMPRISING A CORE WIRE OF STEEL HAVING NOT MORE THAN .07% CARBON, .40% MANGANESE AND .02% PHOSPHORUS, SAID CORE BEING COATED WITH A COMPOSITION CONTAINING IN APPROXIMATE RANGES 25.5-39.5% CHROMIUM AND 2.5-9.0% CARBON- AND PHOSPHORUS-FREE MANGANESE POWDER, THE PRESENCE OF THE LATTER PERMITTING THE INCLUSION OF A FERRO-FORM OF ALLOYING INGREDIENT WITHOUT CAUSING AN EXCESS OF CARBON AND PHOSPHORUS IN THE WELD, THE REMAINDER BEING FLUXING, SLAGFORMING, BINDER, REDUCING, AND ARC STABILIZER AGENTS, THE WELD METAL DEPOSITED BY THE COATED ELECTRODE CONTAINING NOT MORE THAN .08 CARBON, 2.50 MANGANESE, AND .04 PHOSPHORUS.
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) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |