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The ornamental design for a combined locking and unlocking nut for ground jointed glassware, as shown. |
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FIG. 1 is a side elevational view of a combined locking and unlocking nut for ground jointed glassware, showing my new design.
FIG. 2 is a front elevational view of the nut in FIG. 1.
FIG. 3 is a cross-sectional view taken along Line III--III of FIG. 2.
FIG. 4 is a top plan view of the nut in FIG. 1.
FIG. 5 is a bottom plan view of the nut in FIG. 2.
FIG. 6 is a bottom perspective view of the nut in FIG. 2.
| Patent | Priority | Assignee | Title |
| Patent | Priority | Assignee | Title |
| 4391779, | Jul 06 1981 | Bel-Art Products | Teflon ground glass adaptor |
| 4395382, | Sep 25 1981 | Bel-Art Products | Glassware stopcock with freeze extractor |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Jun 12 1990 | MISKINIS, ROBERT J | UNITED STATES OF AMERICA, THE, AS REPRESENTED BY THE DEPARTMENT OF JUSTICE | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 006946 | /0078 | |
| Mar 21 1994 | Government of the United States of America | Bel-Art Products | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 006946 | /0082 |
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