US3356493A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alloys for nitriding steel and method of nitriding steel
Assignee: Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU
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Filing: 1965-01-15
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Granted: 1967-12-05
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Expires: 1985-01-15
Abstract
No abstract record available.
Inventors
- 👤 Danis Francois
- 👤 Cloppet Raymond
- 👤 Montanteme Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:13
CPC Classifications
C; C21; C21C; C21C7/00; C21C7/0006; C22; C22C; C22C28/00; C22C35/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
A METAL ALLOY CONSISTING ESSENTIALLY OF ABOUT 40.090.0% BY WEIGHT MANGANESE, ABOUT 0.50-10.0% BY WEIGHT ALUMINUM, ABOUT 0.50-10.0% BY WEIGHT NITROGEN AND UP TO 8% BY WEIGHT CARBON.
Claim 2
Dependent Claim
28 words
A METAL ALLOY CONSISTING ESSENTIALLY OF ABOUT 40.090.0% BY WEIGHT MANGANESE, ABOUT 0.50-10.0% BY WEIGHT ALUMINUM, ABOUT 0.50-10.0% BY WEIGHT NITROGEN AND UP TO 8% BY WEIGHT 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) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |