US3085028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means for depositing silicon
Assignee: Wean Engineering Co Inc
•
Filing: 1958-02-10
•
Granted: 1963-04-09
•
Expires: 1978-02-10
Abstract
No abstract record available.
Inventors
- 👤 John E Logan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:19
CPC Classifications
C; C23; C23C; C23C10/00; C23C10/18; C23C10/20; C23C10/22
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
42 words
THE METHOD OF COATING OF FERROUS METAL WITH SILICON WHICH COMPRISES CLEANING AND WASHING THE FERROUS METAL, IMMERSING IT IN A MIXTURE COMPRISING 1% TO 40% SILICON, THE BALANCE BEING SUBSTANTIALLY LIQUID METALLIC SODIUM AND PROTECTING THE MIXTURE WITH AN INERT ATMOSPHERE.
References Cited (Backward Citations)
US1073560A
Cited
US1869494A
Cited
US2097024A
Cited
US2431326A
Cited
US2438892A
Cited
US2509875A
Cited
US2665998A
Cited
US2703296A
Cited
US2848352A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |