Patent US3099556A successfully refreshed from Google Patents.
US3099556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Graphitic steel
Assignee: Timken Co
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Filing: 1962-04-20
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Granted: 1963-07-30
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Expires: 1982-04-20
Abstract
No abstract record available.
Inventors
- 👤 Chester F Jatczak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:49
CPC Classifications
C; C21; C21D; C21D9/00; C21D9/08; C22; C22C; C22C38/00; C22C38/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A FORGEABLE AND GRAPHITIZABLE STEEL CONSISTING ESSENTIALLY OF 1.25 TO 1.55 PERCENT OF CARBON , 0.5 TO 0.7 PERCENT OF MANGANESE, 0.55 TO 0.85 PERCENT TO ALL SILICON, 0.1 TO 0.35 PERCENT OF ALIMINUM, AND THE REMAINDER ESSENTIALLY IRON, AND CHARACTERIZED IN THE ANNEALED STATE BY CONTAINING UP TO ABOUT 0.7 PERCENT OF GRAPHIC CARBON.
Claim 2
Dependent Claim
55 words
A FORGEABLE AND GRAPHITIZABLE STEEL CONSISTING ESSENTIALLY OF 1.25 TO 1.55 PERCENT OF CARBON , 0.5 TO 0.7 PERCENT OF MANGANESE, 0.55 TO 0.85 PERCENT TO ALL SILICON, 0.1 TO 0.35 PERCENT OF ALIMINUM, AND THE REMAINDER ESSENTIALLY IRON, AND CHARACTERIZED IN THE ANNEALED STATE BY CONTAINING UP TO ABOUT 0.7 PERCENT OF GRAPHIC CARBON.
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) | 1966-07-29 | 1967-01-28 | 1967-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-29 | 1971-01-28 | 1971-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-29 | 1975-01-28 | 1975-07-30 | $7700.00 | Window Closed / Lapsed |