US3183127A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat treatable tool steel of high carbide content
Assignee: Chromalloy Corp
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Filing: 1963-04-30
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Granted: 1965-05-11
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Expires: 1983-04-30
Abstract
No abstract record available.
Inventors
- 👤 Gregory Eric
- 👤 Epner Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:28
CPC Classifications
C; C22; C22C; C22C29/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A HARDENED, WEAR RESISTANT, HIGH CARBON TOOL STEEL CONSISTING ESSENTIALLY OF ABOUT 15% TO 90% BY WEIGHT OF PRIMARY CARBIDE BASED ON AT LEAST ONE CARBIDE SELECTED FROM THE GROUP CONSISTING OF VC, CBC AND TAC DISTRIBUTED SUBSTANTIALLY UNIFORMLY THROUGH A FERROUS MATRIX CONSISTING ESSENTIALLY OF THE BALANCE, SAID FERROUS MATRIX CONTAINING IRON AS THE MAJOR ALLOYING CONSTITUENT AND CONTAINING COMBINED CARBON AND CONSISTING ESSENTIALLY OF A MICROSTRUCTURE SELECTED FROM THE GROUP CONSISTING OF MARTENSITE AND BAINITE.
Claim 2
Dependent Claim
77 words
A HARDENED, WEAR RESISTANT, HIGH CARBON TOOL STEEL CONSISTING ESSENTIALLY OF ABOUT 15% TO 90% BY WEIGHT OF PRIMARY CARBIDE BASED ON AT LEAST ONE CARBIDE SELECTED FROM THE GROUP CONSISTING OF VC, CBC AND TAC DISTRIBUTED SUBSTANTIALLY UNIFORMLY THROUGH A FERROUS MATRIX CONSISTING ESSENTIALLY OF THE BALANCE, SAID FERROUS MATRIX CONTAINING IRON AS THE MAJOR ALLOYING CONSTITUENT AND CONTAINING COMBINED CARBON AND CONSISTING ESSENTIALLY OF A MICROSTRUCTURE SELECTED FROM THE GROUP CONSISTING OF MARTENSITE AND BAINITE.
References Cited (Backward Citations)
US2828202A
Cited
US3053706A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-10 | 1968-11-09 | 1969-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-10 | 1972-11-09 | 1973-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-10 | 1976-11-09 | 1977-05-11 | $7700.00 | Window Closed / Lapsed |