Beam expander
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Description
2. Beam expanders
Claims
The ornamental design for a beam expander, as shown and described.
Referenced Cited
U.S. Patent Documents
| D165137 | November 1951 | Gorin |
| D215851 | November 1969 | Heininger |
| D306740 | March 20, 1990 | Nichols |
| D377184 | January 7, 1997 | Wells |
| D387787 | December 16, 1997 | Palmer |
| D460095 | July 9, 2002 | Yoneda |
| D779349 | February 21, 2017 | Kobayashi |
| D779981 | February 28, 2017 | Kobayashi |
| D845795 | April 16, 2019 | Kim |
| D850947 | June 11, 2019 | Vermillion |
Patent History
Patent number: D877225
Type: Grant
Filed: Sep 18, 2018
Date of Patent: Mar 3, 2020
Assignee: JENOPTIK Optical Systems GmbH (Jena)
Inventors: Stefan Franz (Jena), Bernd Seher (Jena)
Primary Examiner: Holly E Thurman
Application Number: 35/505,862
Type: Grant
Filed: Sep 18, 2018
Date of Patent: Mar 3, 2020
Assignee: JENOPTIK Optical Systems GmbH (Jena)
Inventors: Stefan Franz (Jena), Bernd Seher (Jena)
Primary Examiner: Holly E Thurman
Application Number: 35/505,862
Classifications
Current U.S. Class:
Optical Article Not Elsewhere Specified (D16/130)
