How to read a patent in 60 seconds
danshapiro.com
danshapiro.com
The specification and drawings are important as they, among other things, define the meaning of the claims. Usually, if you just skip ahead to the independent claims you will have no idea what the claims are talking about. This is especially true in the electronics/software/online arts where people tend to make up their terminology as they go along.
And if you've only got a minute, you're time will be far better spent in the claims than in the abstract, description, or title, which is what most people do!
I agree that if you have a minute only and you are worried about infringement it may be a good idea to start from the independent claims. But you should not fool yourself that you have read the whole patent. Because if you only read the claims, and even if you think you understand the claims perfectly you can be in for a nasty surprise if you do not read the spec.
Unrelated: its very cool to randomly stumble upon someone using a theme I compiled: http://midmodesign.com/news/general/our-special-wordpress-th... :-)
While reviewing my patent I have always become worn out by the time I get to reviewing the claims so I have always been a little wary of them (especially because I am used to being as precise as I can, but claims are written to be interpreted broadly).
Sure enough, when I looked this time, the claims spoke loudly to me. What needs to be there is there in the independent claims.
Regarding expansion, this is sometimes necessary. A good patent lawyer may need to add a lot of material to your description. There are many possible reasons for that: for example, you may be so advanced in your field that things that may seem obvious to you are actually pretty complex and must be described in more detail. Or if you have defined your invention too narrowly, a good patent lawyer will describe your invention in different scopes (both broadly and narrowly) and think of all kinds of different fields and applications for your invention, thus ensuring you get a better value out of your patent.
Uh...good luck with that.