Patent US5535368A successfully refreshed from Google Patents.
US2885301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chromizing coating
Assignee: Metal Diffusions Inc
•
Filing: 1956-08-02
•
Granted: 1959-05-05
•
Expires: 1976-08-02
Abstract
No abstract record available.
Inventors
- 👤 George A Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:33
CPC Classifications
C; C23; C23C; C23C10/00; C23C10/28; C23C10/30; C23C10/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
THE METHOD OF CHROMIZING IRON AND STEEL PARTS, WHICH COMPRISES COATING THE PARTS WITH A COMPOSITION ESSENTIALLY COMPRISING POWDERED GLASS, A SOURCE OF CHROMIUM, A CHROMIUM HALIDE, AND A BODYING MATERIAL, AND SUBJECTING THE PARTS THUS COATED TO A TEMPERATURE OF BETWEEN 1600 AND 2300 DEGREES F.
Claim 2
Independent Claim
47 words
THE METHOD OF CHROMIZING IRON AND STEEL PARTS, WHICH COMPRISES COATING THE PARTS WITH A COMPOSITION ESSENTIALLY COMPRISING POWDERED GLASS, A SOURCE OF CHROMIUM, A CHROMIUM HALIDE, AND A BODYING MATERIAL, AND SUBJECTING THE PARTS THUS COATED TO A TEMPERATURE OF BETWEEN 1600 AND 2300 DEGREES F.
References Cited (Backward Citations)
US928398A
Cited
US1729065A
Cited
US1746924A
Cited
US1902503A
Cited
US2219004A
Cited
US2536774A
Cited
US2836513A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |