Method of manufacturing fiber gypsum board
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 30, 1994
Grant Date -
N/A
app pub date -
Aug 23, 1990
filing date -
Aug 23, 1990
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method and apparatus for producing gypsum board. The method includes the steps of mixing a predetermined amount of fibers, absorbent, and water to form a mixture of wetted, loose fibers, mixing the wetted fibers with predetermined amount of dry calcined gypsum, forming the mixture into a matt having a substantially uniform consistency and compressing the matt to form a board composed of bonded fibers and gypsum. The resulting board has a smooth exterior and can be a homogeneous or a multilayer board.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
LOUISIANA-PACIFIC CORPORATION | 414 UNION STREET SUITE 2000 NAHSVILLE TN 37219 | |
CARL SCHENCK AG | A CORP OF GERMAN D-6100 DARMSTADT 1 |
International Classification(s)

- 1990 Application Filing Year
- B28B Class
- 109 Applications Filed
- 2 Patents Issued To-Date
- 1.84 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Bhagwat, Suda G | Double Oak, TX | 1 | 72 |
# of filed Patents : 1 Total Citations : 72 | |||
Eisses, James | Coeus D'Alene, ID | 1 | 72 |
# of filed Patents : 1 Total Citations : 72 | |||
Melzer, Gerhard M | Lautertal, DE | 1 | 72 |
# of filed Patents : 1 Total Citations : 72 | |||
Schafer, Karl K | Gengenbach, DE | 1 | 72 |
# of filed Patents : 1 Total Citations : 72 | |||
Scriba, Jorg | Ortenberg, DE | 1 | 72 |
# of filed Patents : 1 Total Citations : 72 |
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Patent Citation Ranking
- 72 Citation Count
- B28B Class
- 98.54 % this patent is cited more than
- 31 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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