US4052522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bicycle mudguard
Assignee: Inoue Rubber Co Ltd
•
Filing: 1973-01-23
•
Granted: 1977-10-04
•
Expires: 1993-01-23
Abstract
Abstract A bicycle mudguard comprising a rigid substrate made of a synthetic resin material having good weather resistance, strength and rigidity, a surface layer of synthetic resin material having good weather resistance, and an intermediate layer disposed between said surface layer and substrate.
Inventors
- 👤 Koji Narita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:22
CPC Classifications
B; B62; B62B; B62B9/00; B62B9/16; Y; Y10; Y10T; Y10T428/00; Y10T428/23; Y10T428/24; Y10T428/24273; Y10T428/24628; Y10T428/24777; Y10T428/24802; Y10T428/24851; Y10T428/24868; Y10T428/24917; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31699; Y10T428/31703; Y10T428/31855; Y10T428/31931; Y10T428/31935
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
94 words
A bicycle mudguard comprising: a substrate layer of an acrylonitrile-butadiene-styrene resin having the strength and rigidity required of such mudguards; a surface layer of at least one transparent, weather resistant resin selected from the group consisting of cellulose acetate-butyrate and vinyl chloride resins; and an intermediate layer having a thickness of 20 to 100 between said surface layer and said substrate layer, said intermediate layer being made of a synthetic resin material covered with a thin substantially continuous coating of fully reflective metallic material which reflects light rays passing through said transparent surface layer.
Claim 2
Dependent Claim
94 words
A bicycle mudguard comprising: a substrate layer of an acrylonitrile-butadiene-styrene resin having the strength and rigidity required of such mudguards; a surface layer of at least one transparent, weather resistant resin selected from the group consisting of cellulose acetate-butyrate and vinyl chloride resins; and an intermediate layer having a thickness of 20 to 100 between said surface layer and said substrate layer, said intermediate layer being made of a synthetic resin material covered with a thin substantially continuous coating of fully reflective metallic material which reflects light rays passing through said transparent surface layer.
Claim 3
Dependent Claim
30 words
A bicycle mudguard as claimed in claim 1 comprising a weatherproof coloring material incorporated into said surface layer, the thickness of said surface layer lying between 500 and 1200 microns.
Claim 4
Dependent Claim
28 words
A bicycle mudguard according to claim 1 wherein said substrate layer is colored with at least one weatherproof material selected from the group consisting of pigments and dyes.
Claim 5
Dependent Claim
95 words
A bicycle mudguard according to claim 1, comprising an end cover protecting each of the opposite ends of said mudguard to prevent the reflective metallic coating of said intermediate layer from being exposed to the weather, said end cover being made of the same synthetic resin material as that constituting said surface layer, said end cover being formed with a recess, the cross section of which has the same configuration as that of each end of said mudguard, so that each of the opposite ends of said mudguard is received in one of said recesses.
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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) | 1980-10-03 | 1981-04-04 | 1981-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-03 | 1985-04-04 | 1985-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-03 | 1989-04-04 | 1989-10-04 | $7700.00 | Window Closed / Lapsed |