Number | Name | Date | Kind |
---|---|---|---|
D259508 | Giles | Jun 1981 | |
727019 | Stewart | May 1903 | |
1606410 | Frame | Nov 1926 | |
2172939 | Lintern et al. | Sep 1939 | |
2294363 | Brockway | Sep 1942 | |
2550353 | Hopfinger | Apr 1951 | |
3085490 | Field | Apr 1963 | |
3738621 | Anderson | Jun 1973 | |
4026971 | Glasae | May 1977 | |
4196657 | Crongeyer | Apr 1980 | |
4759270 | Lindeen | Jul 1988 |
Number | Date | Country |
---|---|---|
2613666 | Oct 1977 | DEX |
Entry |
---|
Photos Labeled A-E of a Vent Cap Cover, in public use prior to Dec. 1989. |
J. C. Whitney's Cat. .COPYRGT.1979, p. 25, Roof Air Scoops 1, 2, and 3, top left and middle left Sides of page respectively. |
1981 Sweet's Cat., vol. 11, Section 10.19/50, p. 3, Ampcor Roof Louvers RV-75, DV-75, RV-73, top right side of page. G33113 |
Number | Date | Country | |
---|---|---|---|
Parent | 458975 | Dec 1989 |