Membrane roofing
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 5, 2017
Issued Date -
N/A
app pub date -
Sep 13, 2012
filing date -
Apr 10, 2008
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A foam roofing underlayment is provided with a reinforcement membrane having an array of fastener elements for engaging fastener elements on a flexible roof membrane. The underlayment is formed by molding foam between the reinforcement membrane and a carrier membrane. The underlayment in secured to the roof using washers having fastener elements for engaging the fastener elements of the flexible roof membrane. An anti-peel flap with fastener elements is provided around the periphery of the washers. A slip sheet is used between the underlayment and the flexible roof membrane to permit accurate positioning of the flexible roof membrane prior to engagement of the fastener elements. The interstices between the fastener elements provide lateral moisture paths to vents in the flexible roof membrane.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2012 Application Filing Year
- F24J Class
- 316 Applications Filed
- 268 Patents Issued To-Date
- 84.82 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 6 Citation Count
- F24J Class
- 29.09 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Mar 5, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 5, 2029 |
