Patent US3176967A successfully refreshed from Google Patents.
Patent US3306734A successfully refreshed from Google Patents.
US3306734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low-alloy bearing steel
Assignee: Crucible Materials Corp
•
Filing: 1963-05-28
•
Granted: 1967-02-28
•
Expires: 1983-05-28
Abstract
No abstract record available.
Inventors
- 👤 Alaettin M Aksoy
- 👤 Lillys Peter
- 👤 Jr Frederick G Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:44
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/18; C22C38/22; F; F16; F16C; F16C2204/00; F16C2204/60; F16C2204/66; F16C33/00; F16C33/30; F16C33/58; F16C33/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
AN INGOT OF BEARING STEEL HAVING GOOD HARDENABILITY, RESISTANCE TO TEMPERING, HOT-HARDNESS RETENTION, AND DIMENSIONAL STABILITY, SAID STEEL CONSISTING ESSENTIALLY OF 0.78 TO 0.90 PERCENT CARBON, 0.60 TO 0.90 PERCENT SILICON, 0.20 TO 0.60 PERCENT MANGANESE, 0.55 TO 1.00 PERCENT MOLYBDENUM, 0.60 TO 1.60 PERCENT CHROMIUM, BALANCE IRON.
Claim 2
Dependent Claim
48 words
AN INGOT OF BEARING STEEL HAVING GOOD HARDENABILITY, RESISTANCE TO TEMPERING, HOT-HARDNESS RETENTION, AND DIMENSIONAL STABILITY, SAID STEEL CONSISTING ESSENTIALLY OF 0.78 TO 0.90 PERCENT CARBON, 0.60 TO 0.90 PERCENT SILICON, 0.20 TO 0.60 PERCENT MANGANESE, 0.55 TO 1.00 PERCENT MOLYBDENUM, 0.60 TO 1.60 PERCENT CHROMIUM, BALANCE IRON.
References Cited (Backward Citations)
US2354147A
Cited
US2670281A
Cited
US2753260A
Cited
US2844500A
Cited
US2914401A
Cited
US2876152A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |