Mullion

Sep 16, 1985

Referenced Cited

U.S. Patent Documents

3023859	March 1962	Muessel
3579943	May 1971	Tam
3961452	June 8, 1976	Hubbard et al.
4006573	February 8, 1977	Biebuyck

Patent History

Patent number: D296242
Type: Grant
Filed: Sep 16, 1985
Date of Patent: Jun 14, 1988
Inventor: Douglas C. Sperr (Phoenix, AZ)
Primary Examiner: James M. Gandy
Attorney, Agent or Law Firm: Don J. Flickinger
Attorney: Jordan M. Meschkow
Application Number: 6/776,750

Classifications

Current U.S. Class: With Hollow Core (D25/122); With Hollow Core (D25/124)