Compatibilizer for crumb rubber modified asphalt
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Nov 12, 2002
Grant Date -
N/A
app pub date -
Apr 29, 1996
filing date -
Apr 29, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A compatibilizer and process for use in making crumb rubber modified asphalt. The compatibilizer causes the crumb rubber to completely interact with the asphalt, thereby improving the rheological properties of the asphalt and reducing the tendency of pavement made with the asphalt to ravel. The compatibilizer has as its reactive component one or more glycidyl groups; its polymeric backbone can be ethylenic, styrenic, or acrylic or ethylene vinyl acetate (EVA).
First Claim
all claims..Other Claims data not available
Family
- No Family data available.
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF TRANSPORTATION | WASHINGTON DC |
International Classification(s)

- 1996 Application Filing Year
- C10G Class
- 183 Applications Filed
- 98 Patents Issued To-Date
- 53.56 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Chollar, Brian H | Falls Church, VA | 2 | 13 |
# of filed Patents : 2 Total Citations : 13 | |||
Labib, Mohamed E | Princeton, NJ | 29 | 118 |
# of filed Patents : 29 Total Citations : 118 | |||
Memon, G Mohammed | Sterling, VA | 10 | 71 |
# of filed Patents : 10 Total Citations : 71 |
Cited Art Landscape
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Patent Citation Ranking
- 12 Citation Count
- C10G Class
- 62.31 % this patent is cited more than
- 23 Age
Forward Cite Landscape
- No Forward Cites to Display

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 |
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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 |
Full Text

Legal Events
Date | Code | Event | Description |
---|---|---|---|
Dec 13, 2006 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Nov 13, 2006 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Nov 12, 2006 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Nov 12, 2006 |
May 31, 2006 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Nov 12, 2002 | I | Issuance | |
Apr 29, 1996 | F | Filing | |
Apr 29, 1996 | PD | Priority Date | |
Apr 18, 1996 | AS | ASSIGNMENT | free format text: LICENSE;ASSIGNOR:MEMON, G. MOHAMMED;REEL/FRAME:007993/0607 Owner name: GOVERNMENT OF THE UNITED STATES, DISTRICT OF COLUM Effective Date: Apr 18, 1996 |

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