US3192040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Free machining alloy
Assignee: Carpenter Steel Co
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Filing: 1963-08-05
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Granted: 1965-06-29
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Expires: 1983-08-05
Abstract
No abstract record available.
Inventors
- 👤 Jr Kermit J Goda
- 👤 John J Gross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:24
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/18; C22C38/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
AN AUSTENITIC STAINLESS STEEL ALLOY CHARACTERIZED IN ITS HEAT TREATED CONDITION BY GOOD FREE MACHINABILITY CONSISTING ESSENTIALLY OF UP TO ABOUT .2% CARBON, UP TO ABOUT 8% MANGANESE, UP TO ABOUT 2% SILICON, FROM ABOUT 16% TO 21% CHROMIUM, FROM ABOUT 5% TO 12% NICKEL, FROM ABOUT .05% TO 1% BORON MONONITRIDE, SAID BORON MONONITRIDE BEING DISPERSED THROUGHOUT THE MATRIX OF THE ALLOY, UP TO ABOUT 1% COLUMBIUM, UP TO ABOUT 1% TITANIUM, UP TO ABOUT 3.5% MOLYBDENUM, UP TO ABOUT 3.5% COPPER, UP TO ABOUT .5% PHOSPHORUS, UP TO ABOUT .5% SULFUR, UP TO ABOUT .5% SELENIUM, AND THE REMAINDER CONSISTING ESSENTIALLY OF IRON.
Claim 2
Dependent Claim
105 words
AN AUSTENITIC STAINLESS STEEL ALLOY CHARACTERIZED IN ITS HEAT TREATED CONDITION BY GOOD FREE MACHINABILITY CONSISTING ESSENTIALLY OF UP TO ABOUT .2% CARBON, UP TO ABOUT 8% MANGANESE, UP TO ABOUT 2% SILICON, FROM ABOUT 16% TO 21% CHROMIUM, FROM ABOUT 5% TO 12% NICKEL, FROM ABOUT .05% TO 1% BORON MONONITRIDE, SAID BORON MONONITRIDE BEING DISPERSED THROUGHOUT THE MATRIX OF THE ALLOY, UP TO ABOUT 1% COLUMBIUM, UP TO ABOUT 1% TITANIUM, UP TO ABOUT 3.5% MOLYBDENUM, UP TO ABOUT 3.5% COPPER, UP TO ABOUT .5% PHOSPHORUS, UP TO ABOUT .5% SULFUR, UP TO ABOUT .5% SELENIUM, AND THE REMAINDER CONSISTING ESSENTIALLY OF IRON.
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) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |