Pressure vessel for curing plastic dentures
Description
FIG. 1 is an elevation view of a pressure vessel for curing plastic dentures showing our new design;
FIG. 2 is an elevation thereof, rotated 90.degree. with portions fragmentarily shown in section;
FIG. 3 is a top plan view thereof; and
FIG. 4 is a bottom plan view thereof.
Referenced Cited
U.S. Patent Documents
D149898 | June 1948 | Meister |
D194650 | February 1963 | Gold |
1230013 | June 1917 | Morwitz |
1372190 | March 1921 | Randall et al. |
2955530 | October 1960 | Nilo |
3450039 | June 1969 | Ashbrook |
Patent History
Patent number: D251681
Type: Grant
Filed: Feb 10, 1977
Date of Patent: Apr 24, 1979
Inventors: John K. Lawler, deceased (LATE OF Gardena, CA), by Doris G. Lawler, executrix (Gardena, CA), John W. Mitchell, Sr. (Gardena, CA), Kenneth H. Oyama (Gardena, CA)
Primary Examiner: Bernard Ansher
Attorney: Howard L. Johnson
Application Number: 5/767,660
Type: Grant
Filed: Feb 10, 1977
Date of Patent: Apr 24, 1979
Inventors: John K. Lawler, deceased (LATE OF Gardena, CA), by Doris G. Lawler, executrix (Gardena, CA), John W. Mitchell, Sr. (Gardena, CA), Kenneth H. Oyama (Gardena, CA)
Primary Examiner: Bernard Ansher
Attorney: Howard L. Johnson
Application Number: 5/767,660
Classifications