Reusable extractor-stopper for laboratory glassware
Description
FIG. 1 is a top perspective view of a reusable extractor-stopper for laboratory glassware, showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a cross sectional view thereof, taken along line 3--3 of FIG. 2;
FIG. 4 is a bottom plan view thereof.
The broken line disclosure of a portion of a flask in FIG. 3 is for illustrative purpose only and forms no part of the claimed design.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
D23176 | April 1894 | Tatum |
D157332 | February 1950 | Bolard |
2801017 | July 1957 | Cortat |
9792 | 1891 | GBX |
Patent History
Patent number: D280080
Type: Grant
Filed: Jul 19, 1982
Date of Patent: Aug 13, 1985
Inventor: Robert J. Miskinis (Santee, CA)
Primary Examiner: Catherine E. Kemper
Attorney: George J. Rubens
Application Number: 6/399,364
Type: Grant
Filed: Jul 19, 1982
Date of Patent: Aug 13, 1985
Inventor: Robert J. Miskinis (Santee, CA)
Primary Examiner: Catherine E. Kemper
Attorney: George J. Rubens
Application Number: 6/399,364
Classifications
Current U.S. Class:
D/9439;
D/9440;
D24/29