US4655564A
Expired / Lapsed
US
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Spectacle frame and parts thereof
Assignee: Simro AG
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Filing: 1984-11-05
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Granted: 1987-04-07
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Expires: 2004-11-05
Abstract
Abstract The present invention relates to plastic eyewear, i.e. spectacle frames and parts thereof in which the plastic is selected from the group consisting of polyetherimide and polyethersulfone.
Inventors
- 👤 Guenther Czech
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:22
CPC Classifications
G; G02; G02C; G02C5/00; G02C5/14; B; B29; B29D; B29D12/00; B29D12/02; B29D5/00; B29D5/02; G02C5/008; B29K; B29K2079/00; B29K2081/00
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
40 words
Spectacle frame and parts thereof of plastic, wherein said spectacle frame and parts thereof are substantially comprised of a polyetherimide which exhibits the following repeating unit: ##STR3## or is comprised of a polyethersulfone which exhibits the following repeating unit: ##STR4##
Claim 2
Dependent Claim
40 words
Spectacle frame and parts thereof of plastic, wherein said spectacle frame and parts thereof are substantially comprised of a polyetherimide which exhibits the following repeating unit: ##STR3## or is comprised of a polyethersulfone which exhibits the following repeating unit: ##STR4##
Claim 3
Dependent Claim
24 words
Spectacle frame and parts thereof according to claim 1, wherein said plastic is a polyetherimide having a vitreous temperature of 210° to 230° C.
Claim 4
Dependent Claim
24 words
Spectacle frame and parts thereof according to claim 1, wherein said plastic is a polyetherimide having a vitreous temperature of 215° to 220° C.
Claim 5
Dependent Claim
33 words
Spectacle frame and parts thereof according to claim 1, wherein said plastic is polyethersulfone and has a softening point according to Vicat, measured according to ASTM D 1525, of 210° to 230° C.
Claim 6
Dependent Claim
33 words
Spectacle frame and parts thereof according to claim 1, wherein said plastic is polyethersulfone and has a softening point according to Vicat, measured according to ASTM D 1525, of 220° to 230° C.
Claim 7
Dependent Claim
26 words
Spectacle frame and parts thereof according to claim 1, wherein said polyetherimide or polyethersulfone has an elastic resilience potential similar to that of spectacle frame metal.
Claim 8
Dependent Claim
17 words
Spectacle frame and parts thereof according to claim 1, wherein said polyetherimide or polyethersulfone is not reinforced.
Claim 9
Dependent Claim
21 words
Spectacle frame and parts thereof according to claim 1, wherein said polyetherimide or polyethersulfone is reinforced with glass or carbon fibers.
Claim 10
Dependent Claim
20 words
Spectacle frame and parts thereof according to claim 1, wherein said polyetherimide or polyethersulfone contains metal dust and/or color pigments.
Claim 11
Dependent Claim
21 words
Spectacle frame and parts thereof according to claim 1, wherein the surface of the polyetherimide or polyethersulfone is pigmented or metalized.
Claim 12
Dependent Claim
19 words
Spectacle frame and parts thereof according to claim 1, wherein the frame and its parts contain no supporting inserts.
Claim 13
Dependent Claim
38 words
Use of polyetherimide which exhibits the following repeating unit: ##STR5## or polyethersulfone which exhibits the following repeating unit: ##STR6## for the production of a spectacle frame and parts thereof, especially the temple, flange and bridges by injection molding.
Claim 14
Dependent Claim
38 words
Use of polyetherimide which exhibits the following repeating unit: ##STR5## or polyethersulfone which exhibits the following repeating unit: ##STR6## for the production of a spectacle frame and parts thereof, especially the temple, flange and bridges by injection molding.
References Cited (Backward Citations)
JPS5162739A
Cited
DE2547631A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-04-06 | 1990-10-06 | 1991-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-06 | 1994-10-06 | 1995-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-06 | 1998-10-06 | 1999-04-07 | $7700.00 | Window Closed / Lapsed |