Peak expiratory flow meter
Description
FIG. 1 is a top and side perspective view of a peak expiratory flow meter, showing my new design;
FIG. 2 is a side view thereof;
FIG. 3 is a side view thereof rotated 90 degrees about the length axis from the view of FIG. 2;
FIG. 4 is a rear view thereof; and,
FIG. 5 is a front view thereof.
Referenced Cited
Patent History
Patent number: D396014
Type: Grant
Filed: Mar 5, 1997
Date of Patent: Jul 14, 1998
Inventor: Warren V. Bigelow (Bloomington, MN)
Primary Examiner: Antoine Duval Davis
Attorney: Norman B. Rainer
Application Number: 0/67,095
Type: Grant
Filed: Mar 5, 1997
Date of Patent: Jul 14, 1998
Inventor: Warren V. Bigelow (Bloomington, MN)
Primary Examiner: Antoine Duval Davis
Attorney: Norman B. Rainer
Application Number: 0/67,095
Classifications