Patent US4485590A successfully refreshed from Google Patents.
US4485590A
Expired / Lapsed
US
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Door and frame molded of fibrous mineral material
Assignee: Owens Corning Fiberglas Technology Inc
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Filing: 1983-01-24
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Granted: 1984-12-04
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Expires: 2003-01-24
Abstract
Abstract A door and frame molded of glass wool and a binder and having polyester resin impregnated into outer surface portions.
Inventors
- 👤 Wesley E. Legg
- 👤 Russell L. Ault
- 👤 Richard A. Mott
- 👤 Alan R. Leewood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:56
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/70; E06B3/82; E06B3/86; E06B1/00; E06B1/04; E06B1/26; Y; Y10; Y10T; Y10T428/00; Y10T428/23; Y10T428/237; Y10T428/239; Y10T428/24; Y10T428/24273; Y10T428/24322; Y10T428/249921; Y10T428/249924; Y10T428/24994
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
75 words
A door comprising fabricated fibrous mineral material impregnated with a binder resin, molded into the shape of a door, provided in selected hinge, doorknob, and lock areas with a plurality of spaced holes extending at least most of the way therethrough from one side thereof, and further impregnated on outer surfaces thereof with resin in addition to the binder resin, the additional resin filling said holes and impregnating the molded mineral material adjacent said holes.
Claim 2
Dependent Claim
75 words
A door comprising fabricated fibrous mineral material impregnated with a binder resin, molded into the shape of a door, provided in selected hinge, doorknob, and lock areas with a plurality of spaced holes extending at least most of the way therethrough from one side thereof, and further impregnated on outer surfaces thereof with resin in addition to the binder resin, the additional resin filling said holes and impregnating the molded mineral material adjacent said holes.
Claim 3
Dependent Claim
15 words
A door as claimed in claim 1 wherein the fibrous mineral material is glass wool.
Claim 4
Dependent Claim
13 words
A door as claimed in claim 1 wherein the binder resin is phenol-urea-formaldehyde.
Claim 5
Dependent Claim
14 words
A door as claimed in claim 1 wherein the additional resin is polyester resin.
Claim 6
Dependent Claim
25 words
A door as claimed in claim 1 wherein the density of the molded fibrous mineral material is from six to twenty pounds per cubic foot.
Claim 7
Dependent Claim
23 words
A door as claimed in claim 1 wherein the density of the molded fibrous mineral material is about ten pounds per cubic foot.
References Cited (Backward Citations)
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Cited
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US2970347A
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US4201247A
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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) | 1987-12-04 | 1988-06-04 | 1988-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-04 | 1992-06-04 | 1992-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-04 | 1996-06-04 | 1996-12-04 | $7700.00 | Window Closed / Lapsed |