US3010823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Easily machinable, non-magnetic, manganese steel
Assignee: American Brake Shoe Co
•
Filing: 1959-08-07
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Granted: 1961-11-28
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Expires: 1979-08-07
Abstract
No abstract record available.
Inventors
- 👤 Howard S Avery
- 👤 Henry J Chapin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:34
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
7 words
AN EASILY MACHINABLE AUSTENTIC MANGANESE STEEL AL
Claim 2
Dependent Claim
7 words
AN EASILY MACHINABLE AUSTENTIC MANGANESE STEEL AL
Claim 3
Dependent Claim
43 words
AN EASILY MACHINABLE AUSTENITIC MANGANESE STEEL ALLOY WHICH IS SUBSTANTIALLY NON-MAGNETIC BOTH AS-CAST OR WHEN COLD WORKED, SAID ALLOY CONTAINING CARBON IN EFFECTIVE AMOUNTS BETWEEN ABOUT 0.3 AND 0.8 PERCENT, MANGANESE ABOUT 17 TO 22 PERCENT, AND BISMUTH ABOUT 0.1 TO 0.5 PERCENT.
Claim 4
Dependent Claim
43 words
AN EASILY MACHINABLE AUSTENITIC MANGANESE STEEL ALLOY WHICH IS SUBSTANTIALLY NON-MAGNETIC BOTH AS-CAST OR WHEN COLD WORKED, SAID ALLOY CONTAINING CARBON IN EFFECTIVE AMOUNTS BETWEEN ABOUT 0.3 AND 0.8 PERCENT, MANGANESE ABOUT 17 TO 22 PERCENT, AND BISMUTH ABOUT 0.1 TO 0.5 PERCENT.
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) | 1964-11-27 | 1965-05-29 | 1965-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-27 | 1969-05-29 | 1969-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-27 | 1973-05-29 | 1973-11-28 | $7700.00 | Window Closed / Lapsed |