Patent US5053043A successfully refreshed from Google Patents.
US3228093A
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US
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Method of making mounted circuitry connections
Assignee: GT Schjeldahl Co
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Filing: 1962-02-05
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Granted: 1966-01-11
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Expires: 1982-02-05
Abstract
No abstract record available.
Inventors
- 👤 Francis H Bratton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:00
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/0011; H05K3/0017; H05K3/002; H05K3/36; H05K3/361; H05K3/363; H05K3/40; H05K3/4038; H05K3/4092; H05K2201/00; H05K2201/01; H05K2201/0137; H05K2201/0145; H05K2201/0166; H05K2201/03; H05K2201/0302; H05K2201/0305; H05K2201/0332; H05K2201/0388; H05K2201/0394; H05K2201/0397; H05K2201/04; H05K2201/041; H05K2201/09; H05K2201/09209; H05K2201/095; H05K2201/09563; H05K2201/10; H05K2201/10431; H05K2201/10439; H05K2201/10477; H05K2203/00; H05K2203/07; H05K2203/0779; H05K2203/0786; H05K2203/0789; H05K3/30; H05K3/32; H05K3/34; H05K3/3465; H05K3/3468; H05K3/46; H05K3/4611; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49124; Y10T29/49155
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
THE METHOD OF PREPARING ELECTRICAL CONNECTIONS FROM METAL CIRCUITRY OF THE TYPE WHICH IS NOT ATTACHED BY CONCENTRATED SULPHURIC ACID AND WHICH IS SECURED TO THE SURFACE OF A SHEET OF POLYESTER TEREPHTHALATE BACKING, SAID METHOD COMPRISING, (A) DIPPING THE BACKING INTO SULPHURIC ACID TO A DEPTH SUCH AS TO SUBMERGE THE CIRCUIT AREAS TO BE CONNECTED, (B) PERMITTING THE ACID TO REMOVE ALL OF THE SUBMERGED BACKING MATERIAL FROM SAID AREAS, (C) AND WITHDRAWING THE REMAINING EXPOSED METAL FROM THE ACID BATH.
Claim 2
Independent Claim
83 words
THE METHOD OF PREPARING ELECTRICAL CONNECTIONS FROM METAL CIRCUITRY OF THE TYPE WHICH IS NOT ATTACHED BY CONCENTRATED SULPHURIC ACID AND WHICH IS SECURED TO THE SURFACE OF A SHEET OF POLYESTER TEREPHTHALATE BACKING, SAID METHOD COMPRISING, (A) DIPPING THE BACKING INTO SULPHURIC ACID TO A DEPTH SUCH AS TO SUBMERGE THE CIRCUIT AREAS TO BE CONNECTED, (B) PERMITTING THE ACID TO REMOVE ALL OF THE SUBMERGED BACKING MATERIAL FROM SAID AREAS, (C) AND WITHDRAWING THE REMAINING EXPOSED METAL FROM THE ACID BATH.
References Cited (Backward Citations)
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Cited
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GB775267A
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US3042591A
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US2963392A
Cited
US3038105A
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US3057952A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |