Patent US3020156A successfully refreshed from Google Patents.
US3020156A
Expired / Lapsed
US
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Method of coating metal on dielectric material
Assignee: Mycalex Corp of America
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Filing: 1960-04-04
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Granted: 1962-02-06
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Expires: 1980-04-04
Abstract
No abstract record available.
Inventors
- 👤 William E Rowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:46
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/04; H; H05; H05K; H05K3/00; H05K3/02; H05K3/04; H05K2203/00; H05K2203/11; H05K2203/1105; Y; Y10; Y10S; Y10S430/00; Y10S430/136
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
THE METHOD OF COATING A METAL ON A PREDETERMINED PORTION OF THE SURFCE OF A DIELECTRIC MATERIAL, COMPRISING THE STEPS OF COATING SAID SURFACE WITH A LIQUID SILVER SUSPENSION, BAKING SAID SUSPENSION AT ABOUT 400*F. FOR ABOUT THIRTY MINUTES TO DRIVE OFF THE LIQUID FROM SAID SUSPENSION AND TO CAUSE SAID SILVER TO BOND TO SAID SURFACE, COATING SAID SILVER WITH A LIGHT SENSITIVE HEAT SHRINK ABLE SOLUTION CONSISTING ESSENTIALLY OF 16 OUNCES OF COMMERCIAL FISH GLUE, 3 OUNCES OF A 20, SOLUTION OF AMMONIUM DICHROMATE- 10 DROPS OF CONCENTRATED AMMONIA AND 1 GALON OF WATER, BAKING SAID SOLUTION AT ABOUT 100*F. UNTIL IT DRIES,DISPOSING A NEGATIVE OVER SAID DRIED SOLUTION, ILLUMINATING SAID NEGATIVE TO EXPOSE A PORTION OF SAID LIGHT SENSITIVE MATERIAL,DEVELOPING SAID LIGHT SENSITIVE MATERIAL IN WATER TO WASH AWAY THE EXPOSED PORTION THEREOF, AND BAKING THE REMAINING PORTION OF SAID LIGHT SENSITIVE MATERIAL AT ABOUT 400*F. FOR ABOUT THIRTY MINUTES TO CAUSE SAID MATERIAL TO SHRINK AND PULL THE UNDERLYING SILVER OFF SAID SURFACE OF SAID DIELECTRIC MATERIAL.
Claim 2
Independent Claim
171 words
THE METHOD OF COATING A METAL ON A PREDETERMINED PORTION OF THE SURFCE OF A DIELECTRIC MATERIAL, COMPRISING THE STEPS OF COATING SAID SURFACE WITH A LIQUID SILVER SUSPENSION, BAKING SAID SUSPENSION AT ABOUT 400*F. FOR ABOUT THIRTY MINUTES TO DRIVE OFF THE LIQUID FROM SAID SUSPENSION AND TO CAUSE SAID SILVER TO BOND TO SAID SURFACE, COATING SAID SILVER WITH A LIGHT SENSITIVE HEAT SHRINK ABLE SOLUTION CONSISTING ESSENTIALLY OF 16 OUNCES OF COMMERCIAL FISH GLUE, 3 OUNCES OF A 20, SOLUTION OF AMMONIUM DICHROMATE- 10 DROPS OF CONCENTRATED AMMONIA AND 1 GALON OF WATER, BAKING SAID SOLUTION AT ABOUT 100*F. UNTIL IT DRIES,DISPOSING A NEGATIVE OVER SAID DRIED SOLUTION, ILLUMINATING SAID NEGATIVE TO EXPOSE A PORTION OF SAID LIGHT SENSITIVE MATERIAL,DEVELOPING SAID LIGHT SENSITIVE MATERIAL IN WATER TO WASH AWAY THE EXPOSED PORTION THEREOF, AND BAKING THE REMAINING PORTION OF SAID LIGHT SENSITIVE MATERIAL AT ABOUT 400*F. FOR ABOUT THIRTY MINUTES TO CAUSE SAID MATERIAL TO SHRINK AND PULL THE UNDERLYING SILVER OFF SAID SURFACE OF SAID DIELECTRIC MATERIAL.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |