US4906084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mirror with protective backing
Assignee: ShowerTek Inc
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Filing: 1989-05-02
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Granted: 1990-03-06
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Expires: 2009-05-02
Abstract
Abstract A mirror for use in harsh environments, such as an anti-condensation shower mirror where hot water is sprayed onto the back of the mirror, comprises a transparent sheet (10), preferably of acrylic, a reflective film (12) on one side of the sheet, a protective layer (14) of paint on one side of the reflective layer, and a protective backing layer (16) of plastic, preferably made of PVC, on one side of the protective layer. The protective plastic backing layer protects the fragile paint and reflective films against the effects of hot water, which would otherwise cause these layers to deteriorate and flake off, thus running the mirror over time. Also an edge gasket of rubber (18) may be provided around the edges of the mirror to protect the edges of the layers.
Inventors
- 👤 Thomas R. Christianson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:54
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/08; Y; Y10; Y10S; Y10S359/00; Y10S359/90
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
76 words
A mirror comprising a transparent sheet, a reflective film covering one side of said sheet, and a protective backing layer covering said reflective film, said backing layer comprising a flexible layer of plastic and an adhesive layer adhering said layer of plastic to the back of said reflective film, and further including a protective film directly adhered to said reflective film, said plastic backing layer covering said protective film, said protective film being made of paint.
Claim 2
Dependent Claim
76 words
A mirror comprising a transparent sheet, a reflective film covering one side of said sheet, and a protective backing layer covering said reflective film, said backing layer comprising a flexible layer of plastic and an adhesive layer adhering said layer of plastic to the back of said reflective film, and further including a protective film directly adhered to said reflective film, said plastic backing layer covering said protective film, said protective film being made of paint.
Claim 3
Dependent Claim
89 words
A mirror comprising a transparent sheet, a reflective film covering one side of said sheet, and a protective backing layer covering said reflective film, said backing layer comprising a flexible layer of plastic and an adhesive layer adhering said layer of plastic to the back of said reflective film, and further including a protective film directly adhered to said reflective film, said plastic backing layer covering said protective film, said backing layer of plastic being made from a material selected from the class consisting of polyvinylchloride and polyethylene terephalate.
Claim 4
Dependent Claim
89 words
A mirror comprising a transparent sheet, a reflective film covering one side of said sheet, and a protective backing layer covering said reflective film, said backing layer comprising a flexible layer of plastic and an adhesive layer adhering said layer of plastic to the back of said reflective film, and further including a protective film directly adhered to said reflective film, said plastic backing layer covering said protective film, said backing layer of plastic being made from a material selected from the class consisting of polyvinylchloride and polyethylene terephalate.
Claim 5
Dependent Claim
94 words
A mirror comprising a transparent sheet, a reflective film covering one side of said sheet, and a protective backing layer covering said reflective film, said backing layer comprising a flexible layer of plastic and an adhesive layer adhering said layer of plastic to the back of said reflective film, and further including a protective film directly adhered to said reflective film, said plastic backing layer covering said protective film, and further including a flexible edge gasket covering the edges of said transparent sheet, said reflective film, said protective film, and said protective backing layer.
Claim 6
Dependent Claim
94 words
A mirror comprising a transparent sheet, a reflective film covering one side of said sheet, and a protective backing layer covering said reflective film, said backing layer comprising a flexible layer of plastic and an adhesive layer adhering said layer of plastic to the back of said reflective film, and further including a protective film directly adhered to said reflective film, said plastic backing layer covering said protective film, and further including a flexible edge gasket covering the edges of said transparent sheet, said reflective film, said protective film, and said protective backing layer.
Claim 7
Dependent Claim
58 words
The mirror of claim 3 wherein said protective gasket comprises a bead protion covering a circumferential edge portion of said protective backing, a side portion covering the edges of said layers and extending integrally from said bead portion, and a front portion extending integrally from said side portion and covering a circumferential edge portion of said transparent sheet.
Claim 8
Dependent Claim
71 words
A mirror comprising a transparent sheet, a reflective film covering one side of said sheet, and a protective backing layer covering said reflective film, said backing layer comprising a flexible layer of plastic and an adhesive layer adhering said layer of plastic to the back of said reflective film, and further including a flexible edge gasket covering the edges of said transparent sheet, said reflective film, and said protective backing layer.
Claim 9
Dependent Claim
71 words
A mirror comprising a transparent sheet, a reflective film covering one side of said sheet, and a protective backing layer covering said reflective film, said backing layer comprising a flexible layer of plastic and an adhesive layer adhering said layer of plastic to the back of said reflective film, and further including a flexible edge gasket covering the edges of said transparent sheet, said reflective film, and said protective backing layer.
Claim 10
Dependent Claim
58 words
A mirror or claim 5 wherein said protective gasket comprises a bead portion covering a circumferential edge portion of said protective backing, a side portion covering the edges of said layers and extending integrally from said bead portion, and a front portion extending integrally from said side portion and covering a circumferential edge portion of said transparent sheet.
Claim 11
Dependent Claim
22 words
The mirror of claim 5 wherein said transparent sheet, said reflective film, and said protective backing layer are all circular in shape.
Claim 12
Dependent Claim
83 words
A mirror comprising a transparent sheet, a reflective film covering on one side of said sheet, a protective film covering said reflective film, and a protective backing layer covering said protective film, said protective backing layer comprising a layer of flexible plastic, said backing layer of plastic being adhesively adhered to said protective film by an adhesive layer, and further including a flexible edge gasket covering the edges of said transparent sheet, said reflective film, said protective film, and said protective backing layer.
Claim 13
Dependent Claim
83 words
A mirror comprising a transparent sheet, a reflective film covering on one side of said sheet, a protective film covering said reflective film, and a protective backing layer covering said protective film, said protective backing layer comprising a layer of flexible plastic, said backing layer of plastic being adhesively adhered to said protective film by an adhesive layer, and further including a flexible edge gasket covering the edges of said transparent sheet, said reflective film, said protective film, and said protective backing layer.
Claim 14
Dependent Claim
58 words
The mirror of claim 8 wherein said protective gasket comprises a bead portion covering a circumferential edge portion of said protective backing, a side portion covering the edges of said layers and extending integrally from said bead portion, and a front portion extending integrally from said side portion and covering a circumferential edge portion of said transparent sheet.
Claim 15
Dependent Claim
25 words
The mirror of claim 8 wherein said transparent sheet, said reflective film, said protective film, and said protective backing layer are all circular in shape.
Claim 16
Dependent Claim
21 words
The mirror of claim 8 wherein said backing layer of plastic is polyvinylchloride and is adhesively adhered to said protective film.
Claim 17
Independent Claim
73 words
A method of making a mirror comprising: providing a a transparent sheet, forming a reflective film on one side of said sheet, and adhering a protective backing layer over said relective film, said protective layer comprising a layer of plastic coated witha layer of adhesive, said adhering being performed by placing the adhesive-coated side of said layer of plastic against said reflective film and pressing said layers of plastic and reflective film together.
Claim 18
Independent Claim
73 words
A method of making a mirror comprising: providing a a transparent sheet, forming a reflective film on one side of said sheet, and adhering a protective backing layer over said relective film, said protective layer comprising a layer of plastic coated witha layer of adhesive, said adhering being performed by placing the adhesive-coated side of said layer of plastic against said reflective film and pressing said layers of plastic and reflective film together.
Claim 19
Dependent Claim
23 words
The method of claim 12, further including providing a protective film over said reflective film prior to adhering said layer of plastic thereto.
Claim 20
Dependent Claim
27 words
The method of claim 12, further including forming a flexible edge gasket over the edges of said transparent sheet, said reflective film, and said protective backing layer.
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) | 1993-03-05 | 1993-09-04 | 1994-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-05 | 1997-09-04 | 1998-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-05 | 2001-09-04 | 2002-03-06 | $7700.00 | Window Closed / Lapsed |