US2637896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manganese alloy coating on ferrous base and method of preparation
Assignee: Individual
•
Filing: 1949-11-07
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Granted: 1953-05-12
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Expires: 1969-11-07
Abstract
No abstract record available.
Inventors
- 👤 Nachtman John Simon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:15
CPC Classifications
C; C23; C23C; C23C26/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934; Y10S428/935; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12785; Y10T428/12792
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
29 words
AN ARTICLE OF MANUFACTURE COMPRISING IRON OR STEEL PROVIDED WITH AN ADHERENT CORROSIONRESISTANT COATING FORMED BY DIFFUSION OF ELECTROPLATED METAL LAYERS, AT LEAST ONE OF WHICH IS METALLIC MANGANESE.
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) | 1956-05-11 | 1956-11-10 | 1957-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-11 | 1960-11-10 | 1961-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-11 | 1964-11-10 | 1965-05-12 | $7700.00 | Window Closed / Lapsed |