US4385088A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Decorative artificial rock-like article
Assignee: Individual
•
Filing: 1981-05-22
•
Granted: 1983-05-24
•
Expires: 2001-05-22
Abstract
Abstract An artificial decorative rock of foamed synthetic plastic having a body with an outer surface resembling the concavities and convexities of a natural rock has its outer surface coated with a strengthening layer of epoxy resin filled with hard sand-like particles which give the outer surface a rock simulating, grained texture. By forming a hollow within the surface of one body to complimentarily accommodate the outer surface of another body, one or more artificial decorative rocks can be nested, one within the other. By further shaping the uppermost outer surface of such hollow body to provide a stable support base, the body with the hollow extending upwardly can serve as a container.
Inventors
- 👤 David Baskin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:22
CPC Classifications
C; C04; C04B; C04B32/00; B; B44; B44C; B44C5/00; B44C5/06; B44F; B44F9/00; B44F9/04; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1372; Y10T428/1376
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
103 words
An artificial rock-like decorative form comprising: a body of foamed synthetic plastic generally of the three dimensional, non-planar, irregular form of a natural rock and having an exterior surface with large scale rock-like concavities and convexities and coated with a strengthening layer of epoxy resin filled with hard sand-grain-sized particles giving the surface a small scale grained texture simulating a rock, the layer being a small fraction of the thickness of the plastic so as to conform to the body shape and exhibit its concavities and convexities as well as the smaller grained structure without adding significantly to the weight of the body.
Claim 2
Dependent Claim
103 words
An artificial rock-like decorative form comprising: a body of foamed synthetic plastic generally of the three dimensional, non-planar, irregular form of a natural rock and having an exterior surface with large scale rock-like concavities and convexities and coated with a strengthening layer of epoxy resin filled with hard sand-grain-sized particles giving the surface a small scale grained texture simulating a rock, the layer being a small fraction of the thickness of the plastic so as to conform to the body shape and exhibit its concavities and convexities as well as the smaller grained structure without adding significantly to the weight of the body.
Claim 3
Dependent Claim
14 words
A decorative form according to claim 1 wherein the coated layer includes a pigment.
Claim 4
Dependent Claim
22 words
A decorative form according to claim 1 wherein the concavities and convexities of the surface have substantially smaller pits simulating coral rock.
Claim 5
Dependent Claim
16 words
A decorative form according to claim 1 wherein the body forms a hollow within the surface.
Claim 6
Dependent Claim
24 words
A decorative form according to claim 4 wherein the exterior of the body is shaped to nest within the hollow of a like body.
Claim 7
Dependent Claim
28 words
A decorative form according to claim 4 wherein the hollow opens from the body at the rim defining a plane on which the body may be rested stably.
Claim 8
Dependent Claim
41 words
A decorative form according to claim 4 wherein the hollow opens from the body at a rim, and the body surface remote from the rim defines a base stably supporting the body with the hollow extending upwardly to act as container.
Claim 9
Dependent Claim
114 words
A combination artificial decorative rock and container comprising: a body of synthetic foam plastic having an exterior coated with a strengthening layer of epoxy resin filled with sand particles and being in the shape of a rock, a rim and a hollow extending inwardly of the rim to a bottom, the hollow being shaped complementarily to the exterior so as to recieve a like body, the exterior having a rock textured surface and the hollow having a coating over the foam, the exterior having outside the bottom of the hollow a structure for standing the body upward as a container, and the rim being adapted to stand the body, hollow downward, as a rock.
Claim 10
Dependent Claim
114 words
A combination artificial decorative rock and container comprising: a body of synthetic foam plastic having an exterior coated with a strengthening layer of epoxy resin filled with sand particles and being in the shape of a rock, a rim and a hollow extending inwardly of the rim to a bottom, the hollow being shaped complementarily to the exterior so as to recieve a like body, the exterior having a rock textured surface and the hollow having a coating over the foam, the exterior having outside the bottom of the hollow a structure for standing the body upward as a container, and the rim being adapted to stand the body, hollow downward, as a rock.
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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) | 1986-05-23 | 1986-11-22 | 1987-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-23 | 1990-11-22 | 1991-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-23 | 1994-11-22 | 1995-05-24 | $7700.00 | Window Closed / Lapsed |