US3627403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roadway reflectors
Assignee: Reflex Corp of Canada Ltd
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Filing: 1969-09-11
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Granted: 1971-12-14
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Expires: 1989-09-11
Abstract
Abstract A roadway reflector comprising an integral hollow housing of plastic material including a base portion and a wall extending upwardly and inwardly and having a portion of transparent plastic material with a smooth outer surface and inner surfaces formed with retroreflective prisms. A layer of this plastic film is adhered to the periphery of the portion of the wall containing the prisms and a resin fills the housing, an air space thereby being provided between the film and the surfaces of the prisms.
Inventors
- 👤 Peter Hedgewick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:11
CPC Classifications
E; E01; E01F; E01F9/00; E01F9/50; E01F9/553
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
114 words
A roadway reflector comprising an integral housing including a base portion, a top wall and peripheral walls, one of said walls having a portion tapering upwardly and inwardly and made of transparent plastic material, said portion comprising an outer smooth surface and an inner surface formed with retroreflective prisms having apices and reflecting surfaces, a film of flexible plastic material overlying said prisms and sealed to the periphery of said inner surface of said portion of said one wall, and a mass of resin filling said housing, said resin contacting said film, said film contacting said apices of said prisms and being spaced from the major portions of the reflecting surfaces of said prisms.
Claim 2
Dependent Claim
114 words
A roadway reflector comprising an integral housing including a base portion, a top wall and peripheral walls, one of said walls having a portion tapering upwardly and inwardly and made of transparent plastic material, said portion comprising an outer smooth surface and an inner surface formed with retroreflective prisms having apices and reflecting surfaces, a film of flexible plastic material overlying said prisms and sealed to the periphery of said inner surface of said portion of said one wall, and a mass of resin filling said housing, said resin contacting said film, said film contacting said apices of said prisms and being spaced from the major portions of the reflecting surfaces of said prisms.
Claim 3
Dependent Claim
13 words
The combination set forth in claim 1 wherein said film comprises vinylidene chloride.
Claim 4
Dependent Claim
88 words
A roadway reflector comprising a hollow housing defining a cavity with a wall having a portion thereof made of transparent plastic material, said portion comprising an outer smooth surface and an inner surface formed with retroreflective prisms having apices and reflecting surfaces, a film of flexible plastic material overlying said prisms, a mass of resin filling said cavity of said housing, said resin contacting said film, said film contacting said apices of said prisms and being spaced from the major portion of the reflecting surfaces of said prisms.
Claim 5
Dependent Claim
88 words
A roadway reflector comprising a hollow housing defining a cavity with a wall having a portion thereof made of transparent plastic material, said portion comprising an outer smooth surface and an inner surface formed with retroreflective prisms having apices and reflecting surfaces, a film of flexible plastic material overlying said prisms, a mass of resin filling said cavity of said housing, said resin contacting said film, said film contacting said apices of said prisms and being spaced from the major portion of the reflecting surfaces of said prisms.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-13 | 1975-06-14 | 1975-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-13 | 1979-06-14 | 1979-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-13 | 1983-06-14 | 1983-12-14 | $7700.00 | Window Closed / Lapsed |