US3264402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multilayer printed-wiring boards
Assignee: North American Aviation Corp
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Filing: 1964-03-23
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Granted: 1966-08-02
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Expires: 1984-03-23
Abstract
No abstract record available.
Inventors
- 👤 Joseph M Shaheen
- 👤 Jones Henry Franklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:28
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/46; H05K3/4644; H05K3/4652; H05K2201/00; H05K2201/03; H05K2201/0302; H05K2201/0305; H05K2201/0332; H05K2201/0335; H05K2201/0355; H05K2201/0388; H05K2201/0394; H05K2201/09; H05K2201/09209; H05K2201/095; H05K2201/09563; H05K2203/00; H05K2203/05; H05K2203/0548; H05K2203/0554; H05K3/0011; H05K3/0017; H05K3/002; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/5313; Y10T29/53174
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
A MULTILAYER PRINTED-WIRING BOARD COMPRISNG: A FIRST SHEET OF INSULATING MATERIAL HAVING A FIRST PRINTED CONDUCTOR BONDED TO A TOP SURFACE THEREOF AND A SECOND PRINTED CONDUCTOR BONDED TO A BOTTOM SURFACE THEREOF, AN APERTURE IN SAID FIRST CONDUCTOR AT A LOCATION WHERE AN ELECTRICAL INTERCONNECTION BETWEEN THE CONDUCTORS IS DESIRED, A SOLID CONDUCTING MATERIAL HAVING A PROTRUDING PORTION EXTENDING FROM SAID INSULATING SHEET INTO A FLUSH MOUNT WITHIN SAID APERTURE, SAID PROTRUDING PORTION BEING BONDED TO SAID FIRST CONDUCTOR WITHIN SAID APERTURE, AND A RELATIVELY LARGER PORTION CONTINUOUS WITH SAID PROTRUDING PORTION AND OCCUPYING A MUSHROOM SHAPED OPENING IN SAID INSULATING SHEET WITH THE TOP SURFACE OF SAID LARGER PORTION BEING BONDED TO THE BOTTOM SURFACE OF SAID FIRST CONDUCTOR IN THE AREA ADJACENT TO THE APERTURE, SAID RELATIVELY LARGER PORTION EXTENDING THROUGH SAID INSULATING SHEET AND ELECTRICALLY CONTACTING THE INSIDE SURFACE OF THE SECOND PRINTED CONDUCTOR, SAID SECOND CONDUCTOR BEING CONTINUOUS IN THE AREA WHERE SAID LARGER PORTION MAKES ELECTRICAL CONTACT, THE BOTTOM SURFACE OF SAID LARGER PORTION BEING BONDED TO THE INSIDE SURFACE OF SAID SECOND CONDUCTOR.
Claim 2
Dependent Claim
180 words
A MULTILAYER PRINTED-WIRING BOARD COMPRISNG: A FIRST SHEET OF INSULATING MATERIAL HAVING A FIRST PRINTED CONDUCTOR BONDED TO A TOP SURFACE THEREOF AND A SECOND PRINTED CONDUCTOR BONDED TO A BOTTOM SURFACE THEREOF, AN APERTURE IN SAID FIRST CONDUCTOR AT A LOCATION WHERE AN ELECTRICAL INTERCONNECTION BETWEEN THE CONDUCTORS IS DESIRED, A SOLID CONDUCTING MATERIAL HAVING A PROTRUDING PORTION EXTENDING FROM SAID INSULATING SHEET INTO A FLUSH MOUNT WITHIN SAID APERTURE, SAID PROTRUDING PORTION BEING BONDED TO SAID FIRST CONDUCTOR WITHIN SAID APERTURE, AND A RELATIVELY LARGER PORTION CONTINUOUS WITH SAID PROTRUDING PORTION AND OCCUPYING A MUSHROOM SHAPED OPENING IN SAID INSULATING SHEET WITH THE TOP SURFACE OF SAID LARGER PORTION BEING BONDED TO THE BOTTOM SURFACE OF SAID FIRST CONDUCTOR IN THE AREA ADJACENT TO THE APERTURE, SAID RELATIVELY LARGER PORTION EXTENDING THROUGH SAID INSULATING SHEET AND ELECTRICALLY CONTACTING THE INSIDE SURFACE OF THE SECOND PRINTED CONDUCTOR, SAID SECOND CONDUCTOR BEING CONTINUOUS IN THE AREA WHERE SAID LARGER PORTION MAKES ELECTRICAL CONTACT, THE BOTTOM SURFACE OF SAID LARGER PORTION BEING BONDED TO THE INSIDE SURFACE OF SAID SECOND CONDUCTOR.
References Cited (Backward Citations)
US3148310A
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US2907925A
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US2889532A
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FR1256632A
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US3102213A
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US3143787A
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US3201851A
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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) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |