Patent US3140834A successfully refreshed from Google Patents.
US3682784A
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Process for forming a conductive coating on a substrate
Assignee: RCA Licensing Corp
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Filing: 1971-03-30
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Granted: 1972-08-08
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Expires: 1991-03-30
Abstract
Abstract A SUBSTRATE IS MODIFIED BY THE APPLICATION OF A THERMOSETTING RESINOUS MIXTURE SUCH THAT THE MODIFIED SUBSTRATE MAY BE CHEMICALLY TREATED IN A SPECIFIED MANNER TO PROVIDE, FOR EXAMPLE, A PRINTED CIRCUIT BOARD.
Inventors
- 👤 Robert James Ryan
- 👤 Stokes Fenimore Burtis
- 👤 John Thomas Grogan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:27
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/18; C23C18/20; C23C18/22; C23C18/24; C23C18/1601; C23C18/1603; C23C18/1605; C23C18/1633; C23C18/1646; C23C18/165; C23C18/1653; C23C18/2006; C23C18/2046; C23C18/2073; C23C18/2086; H; H05; H05K; H05K1/00; H05K1/02; H05K1/03; H05K1/05; H05K1/056; H05K3/00; H05K3/10; H05K3/18; H05K3/181; H05K3/38; H05K3/381; H05K3/386; H05K3/387; H05K2203/00; H05K2203/02; H05K2203/025; H05K2203/07; H05K2203/0756; H05K2203/0759; H05K2203/0779; H05K2203/0786; H05K2203/0796; H05K2203/11; H05K2203/1105; H05K3/40; H05K3/42; H05K3/425; H05K3/426; H05K3/44; H05K3/445
Claims Analysis
Total Claims: 0
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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) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |