US2848359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of making printed electric circuits
Assignee: General American Transportation Corp
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Filing: 1955-06-20
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Granted: 1958-08-19
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Expires: 1975-06-20
Abstract
No abstract record available.
Inventors
- 👤 Talmey Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:23
CPC Classifications
H; H01; H01G; H01G2/00; H01F; H01F17/00; H01F17/0006; H03; H03H; H03H5/00; H03H5/02; H05; H05K; H05K3/00; H05K3/10; H05K3/18; H05K3/181; H05K3/182; H05K3/184; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49124; Y10T29/49155; Y10T29/49204; Y10T29/49224
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
198 words
THE METHOD OF MAKING A PRINTED ELECTRIC CIRCUIT, WHICH COMPRISES PROVIDING A COMPOSITE BOARD CARRYING UPON THE FACE THEREOF A LAYER HAVING A CHANNEL FORMED THEREIN, SAID LAYER HAVING A THICKNESS SUBSTANTIALLY LESS THAN THAT OF SAID BOARD AND SAID CHANNEL HAVING A DEPTH COMMENSURATE WITH THE THICKNESS OF SAID LAYER SO THAT ONLY THE PORTION OF THE FACE OF SAID BOARD CONSITUTING THE BOTTOM OF SAID CHANNEL IS EXPOSED, BOTH SAID BOARD AND SAID LAYER BEING FORMED OF ELECTRICAL INSULATING SYNTHETIC PLASTIC MATERIAL, SAID EXPOSED PORTION OF THE FACE OF SAID BOARD CONSTITUTING THE BOTTOM OF SAID CHANNEL ALSO CARRYING DISPERSED GROWTH NUCLEI MINUTE PARTICLES THAT ARE CATALYTIC TO A PLATING BATH OF THE NICKEL CATIONHYPOPHOSPHITE ANION TYPE, AND IMMERSING SAID COMPOSITE BOARD IN A PLATING BATH OF THE NICKEL CATION-HYPOPHOSPHITE ANION TYPE FOR A SUFFICIENTLY LONG TIME INTERVAL OF EFFECT CHEMICAL NICKEL PLATING OF AN ELECTRICAL CONDUCTIVE CIRCUIT ELEMENT UPON THE FACE OF SAID BOARD AND IN THE BOTTOM OF SAID CHANNEL AND HAVING A THICKNESS LESS THAN THAT OF SAID LAYER, WHEREBY SAID CIRCUIT ELEMENT IS COMPLETELY CHANNELIZED BY SAID LAYER AND COMPRISES ABOUT 88 TO 94% NICKEL AND 6 TO 12% PHOSPHORUS BY WEIGHT.
Claim 2
Independent Claim
198 words
THE METHOD OF MAKING A PRINTED ELECTRIC CIRCUIT, WHICH COMPRISES PROVIDING A COMPOSITE BOARD CARRYING UPON THE FACE THEREOF A LAYER HAVING A CHANNEL FORMED THEREIN, SAID LAYER HAVING A THICKNESS SUBSTANTIALLY LESS THAN THAT OF SAID BOARD AND SAID CHANNEL HAVING A DEPTH COMMENSURATE WITH THE THICKNESS OF SAID LAYER SO THAT ONLY THE PORTION OF THE FACE OF SAID BOARD CONSITUTING THE BOTTOM OF SAID CHANNEL IS EXPOSED, BOTH SAID BOARD AND SAID LAYER BEING FORMED OF ELECTRICAL INSULATING SYNTHETIC PLASTIC MATERIAL, SAID EXPOSED PORTION OF THE FACE OF SAID BOARD CONSTITUTING THE BOTTOM OF SAID CHANNEL ALSO CARRYING DISPERSED GROWTH NUCLEI MINUTE PARTICLES THAT ARE CATALYTIC TO A PLATING BATH OF THE NICKEL CATIONHYPOPHOSPHITE ANION TYPE, AND IMMERSING SAID COMPOSITE BOARD IN A PLATING BATH OF THE NICKEL CATION-HYPOPHOSPHITE ANION TYPE FOR A SUFFICIENTLY LONG TIME INTERVAL OF EFFECT CHEMICAL NICKEL PLATING OF AN ELECTRICAL CONDUCTIVE CIRCUIT ELEMENT UPON THE FACE OF SAID BOARD AND IN THE BOTTOM OF SAID CHANNEL AND HAVING A THICKNESS LESS THAN THAT OF SAID LAYER, WHEREBY SAID CIRCUIT ELEMENT IS COMPLETELY CHANNELIZED BY SAID LAYER AND COMPRISES ABOUT 88 TO 94% NICKEL AND 6 TO 12% PHOSPHORUS BY WEIGHT.
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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) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |