Patent US3081525A successfully refreshed from Google Patents.
US3081525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of making printed electric circuits
Assignee: General American Transportation Corp
•
Filing: 1959-09-03
•
Granted: 1963-03-19
•
Expires: 1979-09-03
Abstract
No abstract record available.
Inventors
- 👤 Delbove Emile
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:15
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/10; H05K3/107; H01; H01F; H01F17/00; H01F17/0006; H05K1/00; H05K1/16; H05K1/165; H05K2201/00; H05K2201/09; H05K2201/09009; H05K2201/09036; H05K2201/09818; H05K2201/09981; H05K3/18; H05K3/181; H05K3/182; H05K3/184; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49124; Y10T29/49155; Y10T29/49156; Y10T29/49158
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
THE METHOD OF MAKING A PRINTED ELECTRIC CIRCUIT, WHICH COMPRISES PROVIDING A BOARD FORMED OF PHENOLIC RESIN AND HAVING A FLAT SURFACE, EMBOSSING SHALLOW CHANNELS IN THE SURFACE OF SAID BOARD AMD DEFINING THE OUTLINE OF DESIRED ELECTRIC CIRCUIT ELEMENTS THEREIN, WHEREBY THE UNEMBOSSED AREA OF THE RESULTING SURFACE OF SAID BOARD INARE DISPOSED IN A PLATEAU POSITIONED ABOVE SAID CHANNELS, ACTIVATED THE ENTIRE RESULTING SURFACE OF SAID BOARDIN CLUDING SAID CHANNELS BY CHEMICAL DEPOSITION OF A DISPERSION OF MINUTE PARTICLES OF PALLADIUM ON SAID SURFACE, COATING ONLY THE SURFACE OF SAID BOARD DISPOSED IN SAID PLATEAU WITH PHENOLIC RESIN IN PLASTIC CONDITION WHILE LEAVING SAID CHANNELS EXPOSED, THEREBY BOTH TO MASK THE SURFACE OF SAID BOARD DISPOSED IN SAID PLATEAU AND TO INCREASE THE EFFECTIVE DEPTH OF SAID CHANNELS, HARDENING THE
Claim 2
Independent Claim
132 words
THE METHOD OF MAKING A PRINTED ELECTRIC CIRCUIT, WHICH COMPRISES PROVIDING A BOARD FORMED OF PHENOLIC RESIN AND HAVING A FLAT SURFACE, EMBOSSING SHALLOW CHANNELS IN THE SURFACE OF SAID BOARD AMD DEFINING THE OUTLINE OF DESIRED ELECTRIC CIRCUIT ELEMENTS THEREIN, WHEREBY THE UNEMBOSSED AREA OF THE RESULTING SURFACE OF SAID BOARD INARE DISPOSED IN A PLATEAU POSITIONED ABOVE SAID CHANNELS, ACTIVATED THE ENTIRE RESULTING SURFACE OF SAID BOARDIN CLUDING SAID CHANNELS BY CHEMICAL DEPOSITION OF A DISPERSION OF MINUTE PARTICLES OF PALLADIUM ON SAID SURFACE, COATING ONLY THE SURFACE OF SAID BOARD DISPOSED IN SAID PLATEAU WITH PHENOLIC RESIN IN PLASTIC CONDITION WHILE LEAVING SAID CHANNELS EXPOSED, THEREBY BOTH TO MASK THE SURFACE OF SAID BOARD DISPOSED IN SAID PLATEAU AND TO INCREASE THE EFFECTIVE DEPTH OF SAID CHANNELS, HARDENING THE
References Cited (Backward Citations)
US1329088A
Cited
US2373087A
Cited
US2474988A
Cited
US2599710A
Cited
US2848359A
Cited
US2872391A
Cited
US2901736A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |