US3813282A
Expired / Lapsed
US
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Laminating process including cathode sputtering of carbon substrate
Assignee: Progil SARL
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Filing: 1971-12-29
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Granted: 1974-05-28
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Expires: 1991-12-29
Abstract
Abstract A CARBON SUBSTRATE IS SUBJECTED TO SUPERFICAL CATHODE SPUTTERING TO ALTER ITS SURFACE CHARACTERISTICS. CARBON SUBSTRATES THUS TREATED ARE USEFUL FOR THE FARBRICATION OF VARIOUS COMPOSITE ASSEMBLIES EXHIBTING IMPROVED PHYSICAL PROPER TIES, SUCH AS ENHANCED MECHANICAL STRENGTH.
Inventors
- 👤 R Masotti
- 👤 J Rieux
- 👤 P Borrel
- 👤 J Lehureau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:38
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/06; C04; C04B; C04B20/00; C04B20/02; C22; C22C; C22C49/00; C22C49/14; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2918; Y10T428/30; Y10T428/31; Y10T428/31504; Y10T428/31511
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |