US3387475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of sheet metal articles coated with a thermoplastic resin
Assignee: Rio Tinto Switzerland AG
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Filing: 1966-01-21
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Granted: 1968-06-11
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Expires: 1986-01-21
Abstract
No abstract record available.
Inventors
- 👤 Seipp Werner
- 👤 Drechsler Gerhard
- 👤 Bloeck Siegfried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:01
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; B05; B05D; B05D7/00; B05D7/14; B21; B21D; B21D22/00; B21D22/20; B21D22/203; B29; B29C; B29C51/00; B29C51/14; B29C63/00; B29C71/00; B29C71/02; B29K; B29K2023/00; B29K2705/00; B29K2705/02; Y; Y10; Y10S; Y10S206/00; Y10S206/819
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A PROCESS FOR THE MANUFACTURING OF ARTICLES FROM SHEET METAL IN WHICH THE SHEET METAL IS FIRST COATED WITH A SYNTHETIC THERMOPLATIC RESIN, THE COATED SHEET IS THEN FORMED INTO THE ARTICLE AND THE COATING OF RESIN ON THE ARTICLE SUBSEQUENTLY HEATED UP TO ITS MELTING POINT AND ALLOWED TO COOL, THE RATE OF HEATING AND THE TIME WHICH HAS ELAPSED SINCE THE FORMING OPERATION BEING SO CORRELATED THAT STRESSES IN THE COATING OF RESIN ARE GREATLY REDUCED.
Claim 2
Dependent Claim
78 words
A PROCESS FOR THE MANUFACTURING OF ARTICLES FROM SHEET METAL IN WHICH THE SHEET METAL IS FIRST COATED WITH A SYNTHETIC THERMOPLATIC RESIN, THE COATED SHEET IS THEN FORMED INTO THE ARTICLE AND THE COATING OF RESIN ON THE ARTICLE SUBSEQUENTLY HEATED UP TO ITS MELTING POINT AND ALLOWED TO COOL, THE RATE OF HEATING AND THE TIME WHICH HAS ELAPSED SINCE THE FORMING OPERATION BEING SO CORRELATED THAT STRESSES IN THE COATING OF RESIN ARE GREATLY REDUCED.
References Cited (Backward Citations)
US2756493A
Cited
US3177564A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-11 | 1971-12-11 | 1972-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-11 | 1975-12-11 | 1976-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-11 | 1979-12-11 | 1980-06-11 | $7700.00 | Window Closed / Lapsed |