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The ornamental design for an instrument calibrating demand flow regulator, as shown and described. |
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FIG. 1 is a front elevational view of the instrument calibrating demand flow regulator illustrating my design;
FIG. 2 is a top plan view of the instrument calibrating demand flow regulator;
FIG. 3 is a bottom plan view of the instrument calibrating demand flow regulator;
FIG. 4 is a left elevational side view of the instrument calibrating demand flow regulator;
FIG. 5 is a right elevational side view of the instrument calibrating demand flow regulator; and,
FIG. 6 is a rear elevational side view of the instrument calibrating demand flow regulator.
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| Mar 01 1996 | Air Liquide America Corporation | (assignment on the face of the patent) | / | |||
| Feb 20 1997 | BAKER, GEORGE D | Air Liquide America Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 008358 | /0177 | |
| Oct 01 2002 | Air Liquide America Corporation | AIR LIQUIDE AMERICA L P | CHANGE OF NAME SEE DOCUMENT FOR DETAILS | 026440 | /0365 | |
| Dec 22 2004 | AIR LIQUIDE AMERICA L P | CALGAZ LLC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 026440 | /0155 | |
| Dec 31 2005 | CALGAZ LLC | AIR LIQUIDE ADVANCED TECHNOLOGIES U S LLC | MERGER SEE DOCUMENT FOR DETAILS | 026439 | /0957 |
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