For the solo inventor or small company, a Provisional can be a useful tool. Some folks are scared of what they are ignorant of, so you can't blame them for having a lack of comfort with a provisional.
To begin with, many attorneys divide up the cost of the overall application between formal and provisional by half (Yes, Viriginia, some of us have chucked the "billable hour" in the waste can and lived to tell the tale). So the provisional can be a good way of managing cash-flow for the cash-starved startup enterprise.
If you decide to abandoned the invention after a year of promotion, you are risking a lot less capital.
Second, in most instances, inventors come up with improvements to their designs over time. If you file a "formal" utility application, initially, this means you now have to file a C-I-P application and prosecute TWO applications instead of one. This doubles your prosecution costs.
With a provisional, you can add the new subject matter to the formal. You don't have the earlier filing date for the new subject matter of course (and neither would you in a C-I-P, so there is no difference there).
But instead of prosecuting two applications, you have one (unless you get a restriction requirement).
There are a lot of other uses as well. The emergency provisional is certainly better than nothing when a client comes to you with a 24-48 hour bar-date case.
The prices quoted in this thread are a little high. Check out Inventor's Digest magazine (
www.inventorsdigest.com) for Attorneys who really serve solo inventors and start-ups. These large law firms are really the wrong, wrong place to go for patent work if you are a solo inventor or small company.
I have a rule of thumb for Patent Firms - never use a law firm that is bigger than your own entity. If you are a 5-man operation, hiring a 500-attorney law firm is a bad, bad idea. They just won't care about you as a client. But to a small shop, you ARE the big deal.
And by all means, get a WRITTEN PRICE QUOTE up front. The solo practitioner cannot afford to write a blank check for "billable hours" at a downtown firm. If the Attorney will not give you a written price quote, walk away.
And to all those lawyers out there still chained to the billable hour, jump in, the water is fine. If you've been doing this for 10-15 years, you can price these things out like muffler jobs. And not spending an hour every day tracking "billables" simply makes good sense.
I have sample price quotes on my website (see
www.robertplattbell.com). These need to be updated, but they give you a general idea.
But please, do not send me any work! I am booked up well into late April at this point. Check Inventor's Digest, though. You might find some good leads there - and Attorneys (and Agents) who are not afraid of Provisionals.
Good luck with your project!