Patent US4748068A successfully refreshed from Google Patents.
US4748068A
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US
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Synthetic resin unit
Assignee: Bayer AG
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Filing: 1986-05-15
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Granted: 1988-05-31
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Expires: 2006-05-15
Abstract
Abstract An injection molded synthetic resin unit (2) is provided along predetermined paths (4) with another electrically conductive injection molded synthetic resin to produce, for example, a printed circuit board (1).
Inventors
- 👤 Karsten Fahner
- 👤 Hans W. Depcik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:10
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/10; H05K3/101; H01; H01B; H01B1/00; H01B1/06; H01B1/12; B; B29; B29K; B29K2083/00; B29K2083/005; H05K1/00; H05K1/02; H05K1/09; H05K1/092; H05K1/095; H05K2201/00; H05K2201/09; H05K2201/09009; H05K2201/09036; H05K2201/09118; H05K2203/00; H05K2203/01; H05K2203/0104; H05K2203/0113; H05K3/107; Y; Y10; Y10S; Y10S428/00; Y10S428/901; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24851; Y10T428/31504; Y10T428/31507
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
65 words
A synthetic resin unit with electric current paths, in particular a printed circuit board, consisting of insulating and conductive materials, comprising a moulded unit of insulating synthetic resin having recesses and/or perforations in the region of at least some of which is arranged a conductive synthetic resin as a current path and wherein the conductivity of the conductive synthetic resin is greater than 0.01 S/cm.
Claim 2
Dependent Claim
65 words
A synthetic resin unit with electric current paths, in particular a printed circuit board, consisting of insulating and conductive materials, comprising a moulded unit of insulating synthetic resin having recesses and/or perforations in the region of at least some of which is arranged a conductive synthetic resin as a current path and wherein the conductivity of the conductive synthetic resin is greater than 0.01 S/cm.
Claim 3
Dependent Claim
23 words
A synthetic resin unit according to claim 1, characterised in that at least one of the synthetic resins is an injection moulded thermoplast.
Claim 4
Dependent Claim
19 words
A synthetic resin unit according to claim 1, characterised in that the recesses have a depth of 0.2-4 mm.
Claim 5
Dependent Claim
24 words
A synthetic resin unit according to claim 1, characterised in that the perforations are bores which are only partly filled with conductive synthetic resin.
Claim 6
Dependent Claim
23 words
A synthetic resin unit according to claim 1, characterised in that at least the conductive synthetic resin is covered by a protective layer.
Claim 7
Dependent Claim
70 words
A synthetic resin unit with electric current paths, in particular a printed circuit board, consisting of insulating and conductive materials, characterised in that a moulded unit of insulating synthetic resin has recesses and/or perforations in the region of at least some of which is arranged a conductive synthetic resin as a current path, and wherein the insulating synthetic resin is polycarbonate and the conductive synthetic resin is liquid silicon rubber.
Claim 8
Dependent Claim
70 words
A synthetic resin unit with electric current paths, in particular a printed circuit board, consisting of insulating and conductive materials, characterised in that a moulded unit of insulating synthetic resin has recesses and/or perforations in the region of at least some of which is arranged a conductive synthetic resin as a current path, and wherein the insulating synthetic resin is polycarbonate and the conductive synthetic resin is liquid silicon rubber.
Claim 9
Dependent Claim
19 words
A synthetic resin unit according to claim 3, characterized in that the recesses have a depth of 0.8-2 mm.
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) | 1991-05-31 | 1991-11-30 | 1992-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-31 | 1995-11-30 | 1996-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-31 | 1999-11-30 | 2000-05-31 | $7700.00 | Window Closed / Lapsed |