Patent US4336119A successfully refreshed from Google Patents.
Patent US3090706A successfully refreshed from Google Patents.
US3090706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printed circuit process
Assignee: Motorola Solutions Inc
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Filing: 1959-07-03
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Granted: 1963-05-21
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Expires: 1979-07-03
Abstract
No abstract record available.
Inventors
- 👤 Erwin E Cado
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:58
CPC Classifications
C; C23; C23C; C23C2/00; C23C2/02; C09; C09D; C09D167/00; H; H05; H05K; H05K3/00; H05K3/22; H05K3/28; H05K3/285; H05K3/40; H05K3/42; H05K3/425; H05K3/426; H05K2201/00; H05K2201/03; H05K2201/0332; H05K2201/0335; H05K2201/0344; H05K3/282; H05K3/30; H05K3/32; H05K3/34; H05K3/3452; Y; Y10; Y10S; Y10S428/00; Y10S428/901; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49124; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24851; Y10T428/24917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
IN A PRINTED CIRCUIT ASSEMBLY ADAPTED FOR A SOLDERING OPERATION IN WHICH A FACE OF ASSEMBLY IS SUBSTANTIALLY ENTIRELY CONTACTED WITH MOLTEN SOLDER, SAID ASSEMBLY INCLUDING A RELATIVELY PERMANENT INSULATING BASE AND WHICH HAS METALLIC WIRING CONDUCTORS APPLIED ON AT LEAST ONE SURFACE OF THE BASE, THE IMPROVEMENT COMPRISING A PATTERNED OVERCOAT OF MELAMINE RESIN BASE MATERIAL INCLUDING A THIXOTROPIC AGENT EXTENDING OVER AT LAST SAID ONE SURFACE OF THE PANEL AND OVER SELECTED PORTIONS OF THE METALLIC CONDUCTORS, SAID PATTERNED OVERCOAT BEING A HARD ADHESIVE LAYER WHICH AIDS IN RETAINING THE CONDUCTORS ON SAID SURFACE, AND SAID MELAMINE RESIN AND SAID THIXOTROPIC AGENT GIVING SAID LAYER HIGH THERMAL AND ELECTRICAL INSULATING CHARACTERISTICS TO PROTECT THE ASSEMBLY FROM HEAT AND THUS PREVENT LOOSENING OF SAID CONDUCTORS BY HEAT AND TO PREVENT UNDUE ELECTRICAL LEAKAGE BETWEEN SAID CONDUCTORS.
Claim 2
Dependent Claim
137 words
IN A PRINTED CIRCUIT ASSEMBLY ADAPTED FOR A SOLDERING OPERATION IN WHICH A FACE OF ASSEMBLY IS SUBSTANTIALLY ENTIRELY CONTACTED WITH MOLTEN SOLDER, SAID ASSEMBLY INCLUDING A RELATIVELY PERMANENT INSULATING BASE AND WHICH HAS METALLIC WIRING CONDUCTORS APPLIED ON AT LEAST ONE SURFACE OF THE BASE, THE IMPROVEMENT COMPRISING A PATTERNED OVERCOAT OF MELAMINE RESIN BASE MATERIAL INCLUDING A THIXOTROPIC AGENT EXTENDING OVER AT LAST SAID ONE SURFACE OF THE PANEL AND OVER SELECTED PORTIONS OF THE METALLIC CONDUCTORS, SAID PATTERNED OVERCOAT BEING A HARD ADHESIVE LAYER WHICH AIDS IN RETAINING THE CONDUCTORS ON SAID SURFACE, AND SAID MELAMINE RESIN AND SAID THIXOTROPIC AGENT GIVING SAID LAYER HIGH THERMAL AND ELECTRICAL INSULATING CHARACTERISTICS TO PROTECT THE ASSEMBLY FROM HEAT AND THUS PREVENT LOOSENING OF SAID CONDUCTORS BY HEAT AND TO PREVENT UNDUE ELECTRICAL LEAKAGE BETWEEN SAID CONDUCTORS.
References Cited (Backward Citations)
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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) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |