Patent US3656845A successfully refreshed from Google Patents.
Patent US3816185A successfully refreshed from Google Patents.
US3816185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective coating on wire
Assignee: Raytheon Co
•
Filing: 1972-01-07
•
Granted: 1974-06-11
•
Expires: 1992-01-07
Abstract
Abstract A chemical bath for applying a protective coating on magnetically plated wire during in-line processing, the bath comprising an aqueous alkaline solution including a 0.05 to 0.25 percent concentration of an adsorbable, organic corrosion inhibitor from the class consisting of thiazole, urea and amine compounds; and a 1 to 5 percent concentration of an inorganic, PH stabilizer from the class consisting of borate, benzoate and phosphate salts of sodium and potassium.
Inventors
- 👤 E Toledo
- 👤 L Dzwonczyk
- 👤 Yah Mo R Shih
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:15
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/05; C23C22/60; G; G11; G11B; G11B5/00; G11B5/62; G11B5/72; G11B5/722; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12556
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
23 words
The combination as set forth in claim 1 wherein the PH of the bath is maintained at a value between 8 and 11.
Claim 2
Dependent Claim
34 words
The combination as set forth in claim 1 wherein the minimum concentration of said organic corrosion inhibitor is about 0.05 percent, and the minimum concentration of said inorganic PH stabilizer is about 1 percent.
Claim 3
Dependent Claim
33 words
The combination as set forth in claim 1 wherein the maximum concentration of said corrosion inhibitor is about 0.25 percent and the maximum concentration of said inorganic PH stabilizer is about 5 percent.
Claim 4
Dependent Claim
31 words
The combination as set forth in claim 4 wherein said organic corrosion inhibitor is substantially entirely thiazole and said inorganic PH stabilizer is a combination of sodium borate and sodium benzoate.
Claim 5
Dependent Claim
42 words
The combination as set forth in claim 5 wherein the concentration of thiazole is about 1 gram per liter, the concentration of sodium borate is about 10 grams per liter, and the concentration of sodium benzoate is about 10 grams per liter.
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) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |