US3673722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frame construction for displaying pictures and the like
Assignee: Robertson Manufacturing Co Inc
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Filing: 1971-03-17
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Granted: 1972-07-04
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Expires: 1991-03-17
Abstract
Abstract An improved frame construction enabling front mounting of articles and providing a rear mounting effect. The frame is of plastic composition and has a well and border members. The well includes a smooth front panel and a groove is formed coplanar with the front panel within the frame. The picture overlies the smooth front panel and there is overlying the picture a transparent non-marring and non-discoloring plastic sheet which is completely transparent. A mat having a pressure-sensitive adhesive at the outer periphery seals the transparent sheet cover to the picture and the outer periphery fits within the groove and adhesively secures the picture at its outer periphery to the frame with the outermost edges of the mat being located within the groove. The picture is totally sealed and once the picture is mounted it provides the effect of a rear mounted picture, with mortised grooves located diagonally at each of the corners of the border members, enhancing the effect of a rear mounted picture.
Inventors
- 👤 Richard W Robertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:04
CPC Classifications
A; A47; A47G; A47G1/00; A47G1/06
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
178 words
An improved front mounting frame construction which provides a rear mounting effect comprising a unitary plastic member having: a base member defining a well, said well including front and rear panels with said front panel being substantially flat and smooth throughout to provide a mounting surface which is substantially covered by the picture mounted directly thereon from the front of the frame, said rear panel providing a mounting connection and wall-engaging surface, border members surrounding said well and providing intersecting longitudinal recesses which are coplanar with said well, a picture proportioned to substantially cover said front panel, a transparent cover overlying said picture and having edges which terminate short of the edges of said picture, and a mat having an adhesive underlayer which engages both the outer edge of said transparent cover and said picture to adhesively join them together and to seal said picture, said mat being proportioned to extend into said recess to effect both a mechanical securement to said frame and to provide a seal between the undersurface of said mat and said front panel.
Claim 2
Dependent Claim
178 words
An improved front mounting frame construction which provides a rear mounting effect comprising a unitary plastic member having: a base member defining a well, said well including front and rear panels with said front panel being substantially flat and smooth throughout to provide a mounting surface which is substantially covered by the picture mounted directly thereon from the front of the frame, said rear panel providing a mounting connection and wall-engaging surface, border members surrounding said well and providing intersecting longitudinal recesses which are coplanar with said well, a picture proportioned to substantially cover said front panel, a transparent cover overlying said picture and having edges which terminate short of the edges of said picture, and a mat having an adhesive underlayer which engages both the outer edge of said transparent cover and said picture to adhesively join them together and to seal said picture, said mat being proportioned to extend into said recess to effect both a mechanical securement to said frame and to provide a seal between the undersurface of said mat and said front panel.
Claim 3
Dependent Claim
27 words
The picture frame in accordance with claim 1 wherein said frame is composed of expanded polyurethane plastic which is molded to provide an entire integral frame construction.
Claim 4
Dependent Claim
25 words
The picture frame construction in accordance with claim 1 wherein said transparent cover sheet is a flexible plastic material of thin gauge and inert composition.
Claim 5
Dependent Claim
27 words
The frame construction in accordance with claim 1 wherein said frame is rectangular and has diagonal grooves at the four corners thereof to simulate a mortised construction.
Claim 6
Dependent Claim
51 words
The picture frame in accordance with claim 1 wherein the picture is sealed between the transparent cover and said front panel, and is secured to said front panel through the undersurface of the outer periphery of said mat which is adhesively joined to said front panel and fitted within said recess.
Claim 7
Dependent Claim
37 words
A picture frame in accordance with claim 1 wherein said frame is constructed of cellular interior cured resin and an integral surface of non-cellular resin at the outer surface of the frame and of the same composition.
Claim 8
Dependent Claim
22 words
The picture frame in accordance with claim 6 wherein the surface of the frame is substantially insoluble in finishing materials applied thereon.
Claim 9
Dependent Claim
39 words
The picture frame in accordance with claim 1 wherein the resin is comprised of the reaction product of toluene diisocyanate and polyetherglycol, a surfactant, a catalyst and a blowing agent selected from flurocarbons, water, or a combination of both.
Claim 10
Dependent Claim
26 words
A picture frame in accordance with claim 1 wherein the outer surface is compatible with surface finishers which impart a wood-like finish to the completed frame.
Claim 11
Dependent Claim
19 words
A picture frame in accordance with claim 9 having scultured finished edges and embossments on the outer border members.
Claim 12
Dependent Claim
18 words
The frame construction in accordance with claim 1 wherein said frame is of rectangular, oval, or rounded configuration.
Claim 13
Dependent Claim
29 words
The frame construction in accordance with Claim 1 wherein said cover is a thin, transparent, non-marring and non-discoloring polyvinyl chloride composition having a clear surface and a non-wrinkling character.
Claim 14
Dependent Claim
35 words
The frame construction in accordance with claim 1 wherein said mat is provided with a pressure-sensitive adhesive at the outer periphery thereof, said groove being proportioned to receive the outer periphery of said mat therein.
Claim 15
Dependent Claim
17 words
The picture frame construction in accordance with claim 13 wherein said mat is comprised of opaque material.
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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) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |