pH Meter, or the like
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Description
FIG. 1 is a front and top-left isometric view of a pH meter, or the like showing our new design;
FIG. 2 is a right side elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a bottom plan view thereof.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
Other references
D181743 | December 1957 | Molloy |
D203984 | March 1966 | Roth |
D206264 | November 1966 | Waligorski |
D215564 | October 1969 | MacPhee |
D229968 | January 1974 | Williams |
D249480 | September 19, 1978 | Jungman |
D251114 | February 20, 1979 | Potts |
D255552 | June 24, 1980 | Schonstedt |
D261871 | November 17, 1981 | Akers |
3806797 | April 1974 | Harvey |
4090925 | May 23, 1978 | Jungman |
55-17940 | May 1980 | JPX |
- IBM Instruments, Inc. (Electrochemical), Cat., 11/82, pp. 14-15, pH Meters at top. Popular Mechanics, 11/78, p. 36, pH Meter at bottom right.
Patent History
Patent number: D275268
Type: Grant
Filed: Dec 28, 1981
Date of Patent: Aug 28, 1984
Assignee: Fisons Limited (Ipswich)
Inventors: James O. Molloy (London), Peter E. Sydenham (London)
Primary Examiner: Nelson C. Holtje
Law Firm: Marshall, O'Toole, Gerstein, Murray & Bicknell
Application Number: 6/335,267
Type: Grant
Filed: Dec 28, 1981
Date of Patent: Aug 28, 1984
Assignee: Fisons Limited (Ipswich)
Inventors: James O. Molloy (London), Peter E. Sydenham (London)
Primary Examiner: Nelson C. Holtje
Law Firm: Marshall, O'Toole, Gerstein, Murray & Bicknell
Application Number: 6/335,267
Classifications
Current U.S. Class:
Chemical (12) (D10/81)