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US4068441A Expired / Lapsed US ⏱️ 0.0 years remaining

Cut glass panel

Assignee: PEASE Co
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Filing: 1975-05-07
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Granted: 1978-01-17
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Expires: 1995-05-07
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Abstract

Abstract A cut glass panel is formed of a plurality of pieces of glass bonded together to have at least one decorative side exposed to view. The periphery of the panel eventually will be encompassed in a frame in a window, door, or the like. The edges of the cut pieces of glass are arranged in a pattern such that the adjacent edge of one is approximately a mirror image of the adjacent piece and as a result the spacing between the pieces will be substantially of uniform width. The decorative side of each piece of glass will be beveled at its peripheral edges to provide a distinctive visual appearance. The cut pieces of glass are bonded together by material deposited in the space between the pieces of glass to form generally a T-shaped configuration in cross-section. The deposited material is a mixture of epoxy resin and inorganic filler with the filler having a coefficient of thermal expansion closely approximating that of the glass pieces bonded together.

Inventors

  • 👤 B. Jeremiah Shaffer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 09:55
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/66; E06B3/6604; B; B44; B44C; B44C3/00; B44C3/12; B44C5/00; B44C5/08; B44F; B44F1/00; B44F1/06; B44F1/063

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 303 words
A decorative self-supporting cut glass panel adapted to be mounted with its periphery encompassed in a frame in a window, door, or the like, comprising, in combination, a. a plurality of pieces of light-transmitting sheet glass bonded together in coplanar relation forming a self-supporting and light-transmitting panel having a decorative side and a reverse side, b. the peripheral edges of each of said glass pieces which are adjacent others of said pieces in said panel being cut to approximately the mirror image of said adjacent pieces and being arranged with spaces of approximately uniform width between adjacent said pieces, c. adhesive material filling said spaces between adjacent said pieces of glass, d. said adhesive being a mixture of organic materials and inorganic filler, e. said filler having a coefficient of thermal expansion closely approximating that of said glass pieces and being selected from the group consisting of finely ground glass, magnesium oxide and calcium carbonate, f. said mixture of organic materials comprising an epoxy resin and a curing agent, g. said adjacent edges of said glass pieces being beveled on said decorative side of said panel, h. said bevel being at an angle in the range of 5° to 17° from the plane of said decorative side of said panel and having a width of the order of 5/8 inch, i. the edges of said glass pieces facing each other having structurally irregular surfaces providing better bonding engagement with said adhesive material, j. said adhesive material extending through said panel between adjacent pieces of glass and having a generally T-shaped cross-section including a head portion overlying the adjacent surface portions of said bevels but retained within the plane of said decorative surface, and k. the end of said T-shaped section opposite said head portion being flush with said reverse side of said panel.
Claim 2
Dependent Claim 303 words
A decorative self-supporting cut glass panel adapted to be mounted with its periphery encompassed in a frame in a window, door, or the like, comprising, in combination, a. a plurality of pieces of light-transmitting sheet glass bonded together in coplanar relation forming a self-supporting and light-transmitting panel having a decorative side and a reverse side, b. the peripheral edges of each of said glass pieces which are adjacent others of said pieces in said panel being cut to approximately the mirror image of said adjacent pieces and being arranged with spaces of approximately uniform width between adjacent said pieces, c. adhesive material filling said spaces between adjacent said pieces of glass, d. said adhesive being a mixture of organic materials and inorganic filler, e. said filler having a coefficient of thermal expansion closely approximating that of said glass pieces and being selected from the group consisting of finely ground glass, magnesium oxide and calcium carbonate, f. said mixture of organic materials comprising an epoxy resin and a curing agent, g. said adjacent edges of said glass pieces being beveled on said decorative side of said panel, h. said bevel being at an angle in the range of 5° to 17° from the plane of said decorative side of said panel and having a width of the order of 5/8 inch, i. the edges of said glass pieces facing each other having structurally irregular surfaces providing better bonding engagement with said adhesive material, j. said adhesive material extending through said panel between adjacent pieces of glass and having a generally T-shaped cross-section including a head portion overlying the adjacent surface portions of said bevels but retained within the plane of said decorative surface, and k. the end of said T-shaped section opposite said head portion being flush with said reverse side of said panel.

References Cited (Backward Citations)

US504506A Cited
GB189312472A Cited
US827464A Cited
US904594A Cited
FR399830A Cited
US1769000A Cited
US2169720A Cited
US3070474A Cited
US2991213A Cited
US3460303A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1981-01-16 1981-07-18 1982-01-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1985-01-16 1985-07-18 1986-01-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1989-01-16 1989-07-18 1990-01-17 $7700.00 Window Closed / Lapsed

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