Patent Number tracking HELP
Can anyone tell me how to go about (on the web) tracking a patent number back?
I have gone to the patent office page and get only as far as a page that is blank after putting my number in. Apparently I need something called a TIFF viewer to proceed.
I have tried and failed. the number is 2262990 and there is the number 183 near by, both stamped into the device. I know what the device is (a window sash balance) and that it has to be at least 49 years old. I hope to find more information including perhaps some of the manufacturers.
This has nothing to do with the Airstream, but someone might one day need to track a pat number for a part from one of those too.
Thanks in advance.