Errata In the list of patents which expired November 16, 1994, due to failure to pay maintenance fees, in the O.G. of January 24, 1995, the following patent should not have appeared: Patent No. Serial No. Issue Date Filing Date 4,969,213 07/329,295 11/13/90 03/27/89 Errata In the list of patents which expired on January 03, 1993, due to failure to pay maintenance fees, in O.G. of March 16, 1993, the following patent should not have appeared: Patent No. Serial No. Issue Date Filing Date 4,794,931 06/834,893 01/03/89 02/28/86