US4468430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Asphalt shingle with glass fiber mat
Assignee: Owens Corning Fiberglas Technology Inc
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Filing: 1982-12-23
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Granted: 1984-08-28
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Expires: 2002-12-23
Abstract
Abstract A glass fiber shingle having random butadiene-styrene copolymer added to the coating asphalt for the glass fiber mat.
Inventors
- 👤 Paul P. Ruede
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:41
CPC Classifications
E; E04; E04D; E04D1/00; E04D1/12; E04D1/20; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24372; Y10T428/25; Y10T428/31504; Y10T428/31815; Y10T442/00; Y10T442/20; Y10T442/2213; Y10T442/2369; Y10T442/2926; Y10T442/2992
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
40 words
An asphalt shingle comprising a glass fiber mat coated with a modified asphalt composition including from 96% to 99.5% of asphalt and from 0.5% to 4% of random butadiene-styrene copolymer, based on the combined weights of the asphalt and copolymer.
Claim 2
Dependent Claim
40 words
An asphalt shingle comprising a glass fiber mat coated with a modified asphalt composition including from 96% to 99.5% of asphalt and from 0.5% to 4% of random butadiene-styrene copolymer, based on the combined weights of the asphalt and copolymer.
Claim 3
Dependent Claim
30 words
An asphalt shingle as claimed in claim 1 wherein the modified asphalt composition includes from 50% to 70% of filler, based on the combined weights of asphalt, copolymer, and filler.
Claim 4
Dependent Claim
21 words
An asphalt shingle as claimed in claim 1 wherein the modified asphalt composition includes from 0.5% to 0.75% of the copolymer.
Claim 5
Dependent Claim
30 words
An asphalt shingle as claimed in claim 3 wherein the modified asphalt composition includes from 50% to 70% of filler, based on the combined weights of asphalt, copolymer, and filler.
Claim 6
Dependent Claim
19 words
An asphalt shingle as claimed in claim 1 wherein the modified asphalt composition includes about 0.5% of the copolymer.
Claim 7
Dependent Claim
30 words
An asphalt shingle as claimed in claim 5 wherein the modified asphalt composition includes from 50 to 70% of filler, based on the combined weights of asphalt, copolymer and filler.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-08-28 | 1988-02-27 | 1988-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-28 | 1992-02-27 | 1992-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-28 | 1996-02-27 | 1996-08-28 | $7700.00 | Window Closed / Lapsed |