Extensions

Term, Expiration, and Family Details for US Patent 5,412,730

Patent Term and Expiration

• Filing Date: April 23, 1992
• Issue Date: May 2, 1995
• Status: Expired

This patent was filed before the June 8, 1995, transition date for patent term rules in the United States. Consequently, its term is calculated as the later of 17 years from the issue date or 20 years from the earliest non-provisional filing date.

1. 17 years from Issue Date: May 2, 1995 + 17 years = May 2, 2012.
2. 20 years from Filing Date: April 23, 1992 + 20 years = April 23, 2012.

The later of these two dates is May 2, 2012. The patent's term was not shortened by a terminal disclaimer. No maintenance fees were due after the expiration of its full term.

The projected and actual expiration date for US Patent 5,412,730 was May 2, 2012.

Patent Term Adjustments (PTA) and Extensions (PTE)

• Patent Term Adjustment (PTA): There are no Patent Term Adjustments for this patent. The provisions for PTA were established by the American Inventors Protection Act of 1999 (AIPA) and generally apply to applications filed on or after May 29, 2000.
• Patent Term Extension (PTE): There is no record of any Patent Term Extension for this patent under 35 U.S.C. § 156, which is typically granted to compensate for delays in regulatory review (e.g., by the FDA). This type of extension would not be applicable to the modem technology disclosed in the patent.

Related Applications and Family Members

The patent text itself provides the direct continuity data for this application.

• Parent Application: US Patent 5,412,730 is a continuation-in-part of application Serial No. 07/418,178, which was filed on October 6, 1989. This earlier application subsequently issued as US Patent 5,159,634 on October 27, 1992. The '634 patent is the parent in this family.
• Divisional or Continuation Applications: There are no child applications (continuations or divisionals) that claim priority back to US Patent 5,412,730. The chain of prosecution appears to have concluded with this patent.
• Foreign Family Members: There are no foreign patent applications claiming priority to either the '730 patent or its parent application. This appears to be a U.S.-only patent family.

This relationship can be verified in public databases such as the USPTO's Patent Center.