US3633541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drawing support assembly
Assignee: Mark-Tex Corp
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Filing: 1970-10-06
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Granted: 1972-01-11
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Expires: 1990-10-06
Abstract
Abstract An assembly is provided for supporting cloth, or other sheet material, upon which markings, such as paintings or drawings, are made by felt tipped, ball point or other marking devices. The assembly comprises a top support member, usually round or oval, and a removable hoop to temporarily fasten the cloth in position. A pad consisting of stacked sheets of blotter paper adhered together at their edges is positioned between the cloth and the support member.
Inventors
- 👤 Francis W Andrews
- 👤 Philip S Sussman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:54
CPC Classifications
B; B44; B44D; B44D3/00; B44D3/18; B44D3/185
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
112 words
A support assembly adapted to support a sheet which lies flat so that it may be drawn upon, comprising a support member having a substantially flat top portion and a flange portion descending from said top portion, a plurality of layers of absorbent material each having the outline shape of said top portion, said layers being stacked to form a pad, adhesive means securing the stacked layers together, said layers being separately strippable, said sheet being positioned over the top layer of said pad and having a skirt portion extending over said flange, and a member removably fastened about side flange and skirt portions and adapted to secure the sheet in position.
Claim 2
Dependent Claim
112 words
A support assembly adapted to support a sheet which lies flat so that it may be drawn upon, comprising a support member having a substantially flat top portion and a flange portion descending from said top portion, a plurality of layers of absorbent material each having the outline shape of said top portion, said layers being stacked to form a pad, adhesive means securing the stacked layers together, said layers being separately strippable, said sheet being positioned over the top layer of said pad and having a skirt portion extending over said flange, and a member removably fastened about side flange and skirt portions and adapted to secure the sheet in position.
Claim 3
Dependent Claim
17 words
A support assembly as in claim 1 wherein said top and said absorbent blotter layers are round.
Claim 4
Dependent Claim
17 words
A support assembly as in claim 1 wherein said top and said absorbent blotter layers are oval.
Claim 5
Dependent Claim
26 words
A support assembly as in claim 1 wherein the bottom surface of the pad has thereon an adhesive material which is removably adhered to said top.
Claim 6
Dependent Claim
27 words
A support assembly as in claim 1 wherein a tape having adhesive on its top and bottom removably fastens the bottom of said pad to said top.
Claim 7
Dependent Claim
18 words
A support assembly as in claim 1 wherein the bottom sheet of the pad is a cardboard sheet.
Claim 8
Dependent Claim
19 words
A support assembly as in claim 1 wherein the said adhesive means secures the edges of the said sheets.
References Cited (Backward Citations)
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US726141A
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US1285903A
Cited
US1742831A
Cited
US2096389A
Cited
US2175364A
Cited
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Cited
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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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |