Lifespan of a parachute canopy?

Correction for googl's screwup:

correct link is:

http://www.parachuteriggers.com/

google did some strange hokoos-pokoos to the text I sent.

Jim's email address is

1938 parachute was certified! This is something!
This should be good news for everyone.

One more thing.
I don't know if you know what I know, so I will share this wonderfull
website where
all of you can place several photos of your glider on internet fast,
easy, free, where
I just placed my two photos zooming Blue Ridge of Mount Vaca in
California near Vacaville, just to try it out.
Click on this link to see my bird fly below the ridge.

http://www.airport-data.com/aircraft/N3897A.html

or go to Google, enter your N number, click search and voila, see what
you will get.
Life is like a box of chocolates, you never know what you are going to
get.
Status of your glider, your address and soon pictures of your glider to
share with friends or potential buyers around the World just with a
couple of clicks.

Andre Volant CFIG