US2934430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High temperature bearing alloys
Assignee: Allegheny Ludlum Steel Corp
•
Filing: 1959-02-04
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Granted: 1960-04-26
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Expires: 1979-02-04
Abstract
No abstract record available.
Inventors
- 👤 Leonard V Klaybor
- 👤 Paul R Borneman
- 👤 Donald L Byrne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:15
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/18; C22C38/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
A HEAT RESISTANT IRON BASE ALLOY CONSISTING ESSENTIALLY OF FROM .60% TO 1.00% CARBON, FROM .20% TO 1.10% MANGANESE, FROM 1.00% TO 2.25% SILICON, FROM 11 TO 17.50% CHROMIUM, FROM 3.00% TO 5.50% MOLYBDE-
Claim 2
Dependent Claim
34 words
A HEAT RESISTANT IRON BASE ALLOY CONSISTING ESSENTIALLY OF FROM .60% TO 1.00% CARBON, FROM .20% TO 1.10% MANGANESE, FROM 1.00% TO 2.25% SILICON, FROM 11 TO 17.50% CHROMIUM, FROM 3.00% TO 5.50% MOLYBDE-
References Cited (Backward Citations)
US1485635A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-26 | 1963-10-26 | 1964-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-26 | 1967-10-26 | 1968-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-26 | 1971-10-26 | 1972-04-26 | $7700.00 | Window Closed / Lapsed |