Patent US4600640A successfully refreshed from Google Patents.
US4600640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic resinous substrates having an external thin glass sheet protective layer
Assignee: General Electric Co
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Filing: 1984-08-13
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Granted: 1986-07-15
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Expires: 2004-08-13
Abstract
Abstract An abrasion and chemical solvent resistant thermoplastic article is disclosed which has a protective layer of thin glass from about 0.3 mils to about 20 mils in thickness bonded to a thermoplastic substrate by a UV cured adhesive interlayer.
Inventors
- 👤 Daniel R. Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:32
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10009; B32B17/10018; B32B7/00; B32B7/04; B32B7/12; B32B17/10165; B32B17/1033; B32B17/1055; B32B17/10706; B32B2307/00; B32B2307/50; B32B2307/558; B32B2307/70; B32B2307/714; B32B2307/718; B32B2369/00; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/31504; Y10T428/31507; Y10T428/31511; Y10T428/31515; Y10T428/31518; Y10T428/31551; Y10T428/31573; Y10T428/31576; Y10T428/31598; Y10T428/31601; Y10T428/31645; Y10T428/31649
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
39 words
An article comprising thermoplastic substrate bonded by a UV cured adhesive interlayer on at least one surface to a laid on sheet of thin glass which glass has a thickness of from about 0.3 mil to about 10 mils.
Claim 2
Dependent Claim
39 words
An article comprising thermoplastic substrate bonded by a UV cured adhesive interlayer on at least one surface to a laid on sheet of thin glass which glass has a thickness of from about 0.3 mil to about 10 mils.
Claim 3
Dependent Claim
12 words
The article of claim 1 wherein said thermoplastic resinous substrate is polycarbonate.
Claim 4
Dependent Claim
12 words
The article of claim 1 wherein said thermoplastic resinous substrate is polymethylmethacrylate.
Claim 5
Dependent Claim
14 words
The article of claim 1 wherein said adhesive interlayer is a UV cured polyacrylate.
Claim 6
Dependent Claim
14 words
The article according to claim 4 wherein said polyacrylate ester contains a urethane linkage.
Claim 7
Dependent Claim
15 words
The article of claim 1 wherein said adhesive interlayer is a UV cured epoxy resin.
Claim 8
Dependent Claim
12 words
The article of claim 1 wherein said resinous substrate is a sheet.
Claim 9
Dependent Claim
16 words
The article of claim 1 wherein said resinous substrate is the external lamina of a laminate.
Claim 10
Dependent Claim
17 words
The article of claim 1 wherein said UV cured adhesive interlayer contains a UV light absorbing compound.
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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) | 1989-07-14 | 1990-01-13 | 1990-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-14 | 1994-01-13 | 1994-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-14 | 1998-01-13 | 1998-07-15 | $7700.00 | Window Closed / Lapsed |