Peak flow meter
Latest Multispiro, Inc. Patents:
Description
FIG. 1 is a front right side perspective view of the peak flow meter of the present invention showing my new design; and,
FIG. 2 is a rear left side perspective view thereof.
Referenced Cited
U.S. Patent Documents
| D24070 | February 1895 | La Roche |
| D51285 | September 1917 | Mapel |
| D53023 | February 1919 | Roesch |
| D263166 | February 23, 1982 | Bushman |
| D332229 | January 5, 1993 | Brown |
| 3862628 | January 1975 | Williams |
| 3880591 | April 1975 | Burroughs |
| 3940984 | March 2, 1976 | Oram |
| 3958565 | May 25, 1976 | Wright |
| 4019382 | April 26, 1977 | El-Gammal |
| 4210155 | July 1, 1980 | Grimes |
| 4287775 | September 8, 1981 | Hutton |
| 4292853 | October 6, 1981 | Williams et al. |
| 4294262 | October 13, 1981 | Williams et al. |
| 4420229 | December 13, 1983 | Lewis |
| 4638812 | January 27, 1987 | Hakinen |
| 5012812 | May 7, 1991 | Stockwell |
| 5253651 | October 19, 1993 | Stockwell et al. |
Patent History
Patent number: D367433
Type: Grant
Filed: Mar 31, 1995
Date of Patent: Feb 27, 1996
Assignee: Multispiro, Inc. (Tempe, AZ)
Inventor: Larry L. Helwig (Phoenix, AZ)
Primary Examiner: Antoine Duval Davis
Law Firm: Stetina Brunda & Buyan
Application Number: 0/36,942
Type: Grant
Filed: Mar 31, 1995
Date of Patent: Feb 27, 1996
Assignee: Multispiro, Inc. (Tempe, AZ)
Inventor: Larry L. Helwig (Phoenix, AZ)
Primary Examiner: Antoine Duval Davis
Law Firm: Stetina Brunda & Buyan
Application Number: 0/36,942
Classifications
