The broken lines in the drawings represent unclaimed environmental subject matter.
The broken lines in the drawings represent unclaimed environmental subject matter.
Number | Name | Date | Kind |
---|---|---|---|
936451 | Havenhill | Oct 1909 | A |
2956705 | Clingman | Oct 1960 | A |
3380768 | Wolfensberger | Apr 1968 | A |
3751127 | Black | Aug 1973 | A |
3901571 | Begitschke et al. | Aug 1975 | A |
4115655 | Prentice | Sep 1978 | A |
4123129 | Butler | Oct 1978 | A |
4126364 | Reilly | Nov 1978 | A |
4322572 | Snyder | Mar 1982 | A |
4637324 | Janson | Jan 1987 | A |
4768845 | Yeh | Sep 1988 | A |
4846078 | Janson | Jul 1989 | A |
4884715 | Pohlmann | Dec 1989 | A |
5070429 | Skirpan | Dec 1991 | A |
D323809 | Ross, Jr. | Feb 1992 | S |
D340040 | Gifford et al. | Oct 1993 | S |
5470139 | Hsiao | Nov 1995 | A |
D498211 | Thibault | Nov 2004 | S |
D503377 | Krieger et al. | Mar 2005 | S |
D542284 | Kim | May 2007 | S |
7848085 | Gerber | Dec 2010 | B2 |
20110163648 | Jimenez | Jul 2011 | A1 |