2 ms·
They applied for the patent in 1997, which means it expired in 2017.
by teraflop 5y ago
They applied for the patent in 1997, which means it expired in 2017.
- toomuchtodo 5y agohttps://patents.google.com/patent/US5960411A/en https://patents.google.com/patent/US5960411A/en https://patentimages.storage.googleapis.com/37/e6/81/3ebb1f33c41b4a/US5960411.pdf https://patentimages.storage.googleapis.com/37/e6/81/3ebb1f3...