| Subject: | 10. Re: Miniature Pseudo-SASS Array |
|---|---|
| From: | "Dan Dugan" dandugan_1999 |
| Date: | Tue Aug 14, 2012 8:05 pm ((PDT)) |
> Peter was recently wondering about what Crown would think about people co= pying their design, and this got me somewhat interested in the legal conseq= uences as well. I see in the patent description that its date is 02-18-1987= . I know next to nothing about patent matters, but read somewhere that US P= atents last "in general" 20 years. Does anyone know more about this? Is thi= s invention now in the public domain? I had three US Patents, now expired. The term changed in 1995 to harmonize = with Europe. A 1987 patent would have had a term of 17 years from the grant= ing date, and would have expired in 2004. Expired patents are public domain= . More recent patents have a term of 20 years from the date of application, w= hich works out to about the same. Details: http://www.patentlens.net/daisy/patentlens/2973.html -Dan |
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