US5035626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Markerboard
Assignee: Knoll Inc
•
Filing: 1990-06-01
•
Granted: 1991-07-30
•
Expires: 2010-06-01
Abstract
Abstract A markerboard which includes a rectangular substrate having first and second side edges, top and bottom edges, and front and rear major flat surfaces. A plastic sheet having an erasable surface is fixed to the front surface of the substrate and wrapped over the entire upper edge and at least partially over the remaining edges. A bottom rail is supported by the bottom edge of the substrate, with the bottom rail having first and second ends and a longitudinal groove which extends between the ends having a lip for supporting accessories. First and second stiles cover and conceal the sidewardly facing first and second edges of the substrate and the first and second ends of the bottom rail. The first and second stiles and bottom rail all have having front-facing surfaces which are substantially co-planar with the erasable surface, without overlap over the erasable surface.
Inventors
- 👤 Brian J. Persing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:37
CPC Classifications
G; G09; G09B; G09B29/00; G09B29/001; E; E04; E04B; E04B2/00; E04B2/74; E04B2/7407; E04B2/7416; E04B2/7433; G09F; G09F15/00; G09F15/0006; G09F15/0012
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
181 words
A markerboard comprising: a substantially rectangular support substrate having front and back major opposed sides, first and second longitudinal ends, a top edge and a bottom edge, erasable means on at least the front side of said support substrate having an erasable surface, an elongated rail depending from the bottom edge of the support substrate, said elongated rail having a front surface which is substantially co-planar with the erasable surface of the erasable means, first and second ends adjacent to the first and second longitudinal ends of the support substrate, and a lower edge, said elongated rail defining a cavity and an elongated slot in the front surface which extends between the first and second ends and which communicates with the cavity, said elongated slot having upper and lower edges, with the lower edge being defined by an upstanding accessory support lip, and first and second elongated stiles fixed to the first and second ends of the substrate, with said first and second elongated stiles extending from the top of the support surface to the lower edge of the elongated rail.
Claim 2
Dependent Claim
181 words
A markerboard comprising: a substantially rectangular support substrate having front and back major opposed sides, first and second longitudinal ends, a top edge and a bottom edge, erasable means on at least the front side of said support substrate having an erasable surface, an elongated rail depending from the bottom edge of the support substrate, said elongated rail having a front surface which is substantially co-planar with the erasable surface of the erasable means, first and second ends adjacent to the first and second longitudinal ends of the support substrate, and a lower edge, said elongated rail defining a cavity and an elongated slot in the front surface which extends between the first and second ends and which communicates with the cavity, said elongated slot having upper and lower edges, with the lower edge being defined by an upstanding accessory support lip, and first and second elongated stiles fixed to the first and second ends of the substrate, with said first and second elongated stiles extending from the top of the support surface to the lower edge of the elongated rail.
Claim 3
Dependent Claim
41 words
The markerboard of claim 1 wherein the erasable means is a plastic sheet which completely covers the front side of the substrate and which is wrapped over the upper edge of the substrate to complete the upper edge of the markerboard.
Claim 4
Dependent Claim
40 words
The markerboard of claim 2 wherein the plastic sheet extends over the first and second ends and bottom edge of the substrate, with the bottom rail and first and second stiles aiding in securing the plastic sheet to the substrate.
Claim 5
Dependent Claim
64 words
The markerboard of claim 3 wherein the first and second stiles have front surfaces co-planar with the erasable surface of the erasable means, whereby the first and second stiles and elongated rail, which also has a front surface co-planar with the erasable surface, trim the first and second ends and bottom edge of the substrate without extending over the front surface of the substrate.
Claim 6
Dependent Claim
24 words
The markerboard of claim 2 wherein the plastic sheet includes a coating of polypropylene on at least the side which provides the erasable surface.
Claim 7
Dependent Claim
29 words
The markerboard of claim 2 wherein the plastic sheet is formed of vinyl which has a coating of polypropylene on at least the side which provides the erasable surface.
References Cited (Backward Citations)
US883402A
Cited
US1984845A
Cited
US3283421A
Cited
DE2114620A1
Cited
US3762116A
Cited
US3949132A
Cited
GB1450281A
Cited
US4401222A
Cited
US4779369A
Cited
US4978568A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-07-29 | 1995-01-28 | 1995-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-29 | 1999-01-28 | 1999-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-29 | 2003-01-28 | 2003-07-30 | $7700.00 | Window Closed / Lapsed |