Patent US2943956A successfully refreshed from Google Patents.
US2943956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printed electrical circuits and method of making the same
Assignee: Automated Circuits Inc
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Filing: 1952-12-18
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Granted: 1960-07-05
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Expires: 1972-12-18
Abstract
No abstract record available.
Inventors
- 👤 Thomas L Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:23
CPC Classifications
H; H05; H05K; H05K1/00; H05K1/16; H05K1/167; H05K3/00; H05K3/02; H05K3/04; H05K3/046; H05K1/02; H05K1/09; H05K1/092; H05K1/095; H05K2201/00; H05K2201/09; H05K2201/09818; H05K2201/09981; H05K2203/00; H05K2203/01; H05K2203/0104; H05K2203/0108; H05K2203/0113
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A METHOD OF MAKING A PRINTED ELECTRICAL CIRCUIT, COMPRISING APPLYING TO A NON-CONDUCTING BASE A COATING OF A NON-METALLIC ELECTRICITY CONDUCTING MATERIAL IN SEMI-LIQUID FORM, AND REMOVING UNDESIRED PORTIONS OF SAID COATING BY CONTACTING THE SAME WITH A SURFACE, AND REMOVING FROM SAID SURFACE THE COATING MATERIAL ADHERING THERETO TO RENDER SAID SURFACE USABLE FOR FURTHER REMOVAL OF COATING MATERIAL TO WHICH SAID COATING MATERIAL ADHERES WHILE SAID COATING IS IN SEMI-LIQUID FORM, THEREBY LEAVING ON SAID BASE ACCURATELY DEFINED AND LOCATED PARTS OF SAID COATING TO FORM CONDUCTORS, REMOVING FROM SAID SURFACE THE COATING ADHERING THERETO, AND REPEATING THE CONTACTING OF SAID INDESIRED PORTIONS OF SAID COATING WITH SAID SURFACE, BY GUIDING THE MOVEMENT OF SAID SURFACE INTO ACCURATE CONTACT WITH THE SAME AREAS OF SAID BASE WHICH WERE ORIGINALLY CONTACTED BY SAID SURFACE UNTIL ALL OF SAID COATING NOT REQUIRED FOR CONDUCTORS IS REMOVED FROM SAID BASE.
Claim 2
Independent Claim
149 words
A METHOD OF MAKING A PRINTED ELECTRICAL CIRCUIT, COMPRISING APPLYING TO A NON-CONDUCTING BASE A COATING OF A NON-METALLIC ELECTRICITY CONDUCTING MATERIAL IN SEMI-LIQUID FORM, AND REMOVING UNDESIRED PORTIONS OF SAID COATING BY CONTACTING THE SAME WITH A SURFACE, AND REMOVING FROM SAID SURFACE THE COATING MATERIAL ADHERING THERETO TO RENDER SAID SURFACE USABLE FOR FURTHER REMOVAL OF COATING MATERIAL TO WHICH SAID COATING MATERIAL ADHERES WHILE SAID COATING IS IN SEMI-LIQUID FORM, THEREBY LEAVING ON SAID BASE ACCURATELY DEFINED AND LOCATED PARTS OF SAID COATING TO FORM CONDUCTORS, REMOVING FROM SAID SURFACE THE COATING ADHERING THERETO, AND REPEATING THE CONTACTING OF SAID INDESIRED PORTIONS OF SAID COATING WITH SAID SURFACE, BY GUIDING THE MOVEMENT OF SAID SURFACE INTO ACCURATE CONTACT WITH THE SAME AREAS OF SAID BASE WHICH WERE ORIGINALLY CONTACTED BY SAID SURFACE UNTIL ALL OF SAID COATING NOT REQUIRED FOR CONDUCTORS IS REMOVED FROM SAID BASE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |