Patent US3784440A successfully refreshed from Google Patents.
US3784440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum-clad plastic substrate laminates
Assignee: MacDermid Inc
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Filing: 1971-11-09
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Granted: 1974-01-08
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Expires: 1991-11-09
Abstract
Abstract Plastic parts are formed against an anodically treated aluminum surface by molding, laminating, etc., to produce laminates useful, after removal of or separation from the aluminum, in providing a plastic surface of a high energy level promoting greater adhesion of deposited metal conductor circuits in the additive process of making printed circuit boards.
Inventors
- 👤 J Grunwald
- 👤 Ottavio E D
- 👤 H Rhodenizer
- 👤 M Lombardo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:08
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/38; H05K3/381; B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; H05K3/10; H05K3/18; H05K3/181; H05K3/182; H05K3/184; H05K3/382; H05K3/385; H05K1/00; H05K1/02; H05K1/03; H05K1/0313; H05K1/0353; H05K1/0366; H05K1/09; H05K2201/00; H05K2201/01; H05K2201/0104; H05K2201/0129; H05K2201/03; H05K2201/0332; H05K2201/0335; H05K2201/0355; H05K2203/00; H05K2203/03; H05K2203/0315; H05K2203/07; H05K2203/0703; H05K2203/0716; H05K2203/11; H05K2203/1105; H05K2203/1152; H05K2203/14; H05K2203/1407; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31525; Y10T428/31529; Y10T428/31678; Y10T428/31688; Y10T428/31692; Y10T428/31696; Y10T428/31699; Y10T428/31707
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
14 words
The laminate of claim 1 wherein the said substrate is a thermoset resin substrate.
Claim 2
Dependent Claim
14 words
The laminate of claim 1 wherein the said substrate is a thermoplastic resin substrate.
Claim 3
Dependent Claim
17 words
The laminate of claim 2 wherein the thermoset resin is an epoxy resin reinforced with glass fiber.
Claim 4
Dependent Claim
17 words
The laminate of claim 2 wherein the thermoset resin is a phenolic resin reinforced with glass fiber.
Claim 5
Dependent Claim
12 words
The laminate of claim 3 wherein the said thermoplastic resin is polypropylene.
Claim 6
Dependent Claim
13 words
The laminate of claim 3 wherein the said thermoplastic resin is acrylonitrile-butadiene-styrene copolymer.
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) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |