Vacuum flask
Description
FIG. 1 is a front elevational view of a vacuum flask showing my new design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a top plan elevational view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a right side elevational view thereof;
FIG. 7 is a top perspective view thereof.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
D48560 | February 1916 | Luttringhaus |
D79915 | November 1929 | Davis et al. |
D189939 | March 1961 | Burton |
1047931 | November 1966 | GBX |
Patent History
Patent number: D300709
Type: Grant
Filed: Feb 18, 1986
Date of Patent: Apr 18, 1989
Inventor: Jeng C. Chen (Taipei)
Primary Examiner: Winifred E. Herrmann
Attorney: Bernard R. Gans
Application Number: 6/833,765
Type: Grant
Filed: Feb 18, 1986
Date of Patent: Apr 18, 1989
Inventor: Jeng C. Chen (Taipei)
Primary Examiner: Winifred E. Herrmann
Attorney: Bernard R. Gans
Application Number: 6/833,765
Classifications
Current U.S. Class:
D/7321;
D/7319