Patent US3577670A successfully refreshed from Google Patents.
Patent US3362813A successfully refreshed from Google Patents.
US3362813A
Expired / Lapsed
US
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Austenitic stainless steel alloy
Assignee: Carpenter Steel Co
•
Filing: 1964-09-15
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Granted: 1968-01-09
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Expires: 1984-09-15
Abstract
No abstract record available.
Inventors
- 👤 Walter C Ziolkowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:08
CPC Classifications
G; G21; G21C; G21C7/00; G21C7/06; G21C7/24; C; C22; C22C; C22C38/00; C22C38/18; C22C38/40; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10S; Y10S376/00; Y10S376/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
AN AUSTENITIC STAINLELSS STEEL ALLOY COMPRISING, IN APPROXIMATE PERCENT BY WEIGHT, UP TO .25% CARBON, UP TO 10% MANGANESE, UP TO 2% SILICON, UP TO 1% OF THE GROUP PHOSPHOROUS, SULFUR AND SELENIUM, 12% TO 26% CHROMIUM, 3.5% TO 22% NICKEL, UP TO 4% MOLYBDENUM, UP TO 4% COPPER, UP TO 4% ALUMINUM, UP TO 1.25% TITANIUM, UP TO 1.25% COLUMBIUM, UP TO .7% NITROGEN, FROM .2% TO 3% OF AT LEAST ONE ELEMENT FROM THE GROUP CONSISTING OF GADOLINIUM, EUROPIUM, SAMARIUM AND DYSPROSIUM WITH THE COMBINED TOTAL OF THE ELEMENTS FROM SAID GROUP NOT EXCEEDING 3%, THE REMAINDER BEING SUBSTANTIALLY IRON, AND THE ELEMENTS BEING BALANCED SO THAT AN AS-CAT INGOT OF THE ALLOY CONTAINS ABOUT 5% TO 25% FERRITE.
Claim 2
Dependent Claim
121 words
AN AUSTENITIC STAINLELSS STEEL ALLOY COMPRISING, IN APPROXIMATE PERCENT BY WEIGHT, UP TO .25% CARBON, UP TO 10% MANGANESE, UP TO 2% SILICON, UP TO 1% OF THE GROUP PHOSPHOROUS, SULFUR AND SELENIUM, 12% TO 26% CHROMIUM, 3.5% TO 22% NICKEL, UP TO 4% MOLYBDENUM, UP TO 4% COPPER, UP TO 4% ALUMINUM, UP TO 1.25% TITANIUM, UP TO 1.25% COLUMBIUM, UP TO .7% NITROGEN, FROM .2% TO 3% OF AT LEAST ONE ELEMENT FROM THE GROUP CONSISTING OF GADOLINIUM, EUROPIUM, SAMARIUM AND DYSPROSIUM WITH THE COMBINED TOTAL OF THE ELEMENTS FROM SAID GROUP NOT EXCEEDING 3%, THE REMAINDER BEING SUBSTANTIALLY IRON, AND THE ELEMENTS BEING BALANCED SO THAT AN AS-CAT INGOT OF THE ALLOY CONTAINS ABOUT 5% TO 25% FERRITE.
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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) | 1971-01-08 | 1971-07-10 | 1972-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-08 | 1975-07-10 | 1976-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-08 | 1979-07-10 | 1980-01-09 | $7700.00 | Window Closed / Lapsed |