Pneumatic tube
Description
FIG. 1 is a side elevational view of a pneumatic tube showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is an end elevational view thereof;
FIG. 4 is a bottom plan view thereof; and
FIG. 5 is a fragmentary enlarged end elevational view taken along lines 5--5 of FIG. 1.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
2014129 | September 1935 | Eger |
737816 | July 1943 | DEX |
27695 of | 1908 | GBX |
Patent History
Patent number: D257031
Type: Grant
Filed: Aug 29, 1977
Date of Patent: Sep 23, 1980
Inventor: Claude E. Maynard, Jr. (Blythe, CA)
Primary Examiner: James M. Gandy
Attorney: James E. Brunton
Application Number: 5/828,343
Type: Grant
Filed: Aug 29, 1977
Date of Patent: Sep 23, 1980
Inventor: Claude E. Maynard, Jr. (Blythe, CA)
Primary Examiner: James M. Gandy
Attorney: James E. Brunton
Application Number: 5/828,343
Classifications
Current U.S. Class:
D12/153
International Classification: D1215;
International Classification: D1215;