Parabolic electric heater
Latest National Presto Industries, Inc. Patents:
Description
FIG. 1 is a perspective view of a parabolic electric heater showing my new design;
FIG. 2 is a front perspective view thereof;
FIG. 3 is a rear perspective view thereof;
FIG. 4 is a right side peprspective view thereof;
FIG. 5 is a left side perspective view thereof;
FIG. 6 is an enlarged top perspective view thereof; and,
FIG. 7 is an enlarged bottom perspective view thereof.
Referenced Cited
U.S. Patent Documents
Other references
D45317 | February 1914 | Warner |
D51043 | July 1917 | Brown |
D51253 | September 1917 | Brown |
D51525 | November 1917 | Falkenberg |
D53916 | October 1919 | Kahn |
D54520 | February 1920 | Ledig |
D54635 | March 1920 | Lamb |
D54889 | April 1920 | Brown |
D60152 | January 1922 | Ledig |
D60968 | May 1922 | Smith et al. |
D64815 | June 1924 | Rutenberg |
D65046 | July 1924 | Barnes |
D65471 | August 1924 | Graff |
D66523 | January 1925 | Wolter |
D68418 | October 1925 | Barnes |
D84389 | June 1931 | Ajax |
D145544 | September 1946 | Swartzbaugh |
D147417 | September 1947 | Palma, Jr. |
D152841 | February 1949 | Thompson et al. |
D157659 | March 1950 | Chapman |
D159008 | June 1950 | Seil et al. |
D191384 | September 1961 | Hauser |
D276364 | November 13, 1984 | Sibert |
D288473 | February 24, 1987 | Schmidt et al. |
D300353 | March 21, 1989 | Yurkovic |
D312684 | December 4, 1990 | Geissler et al. |
1462380 | July 1923 | Richardson |
1526352 | February 1925 | Lightfoot et al. |
1540007 | June 1925 | Homeyer |
1614308 | January 1927 | Lamb |
1665941 | April 1928 | Van Der Meersch |
1671378 | May 1928 | Pitt |
1673296 | June 1928 | McManus |
1677281 | July 1928 | Gilbert |
1697606 | January 1929 | Maxson |
1697607 | January 1929 | Maxson |
1709052 | April 1929 | Anderson |
1712001 | May 1929 | Gilbert |
1727983 | September 1929 | Jermon |
1743566 | January 1930 | Packeritz |
1829303 | October 1931 | Schaber |
1919558 | July 1933 | Johnson |
2231070 | February 1941 | Harrison |
2256049 | September 1941 | Gallup |
2512061 | June 1950 | Huck |
2528774 | November 1950 | Oberholtz et al. |
2631217 | March 1953 | Aufiero |
3446429 | May 1969 | Suzuki et al. |
3540429 | November 1970 | Varberg et al. |
3963382 | June 15, 1976 | Patton |
- Hong Kong Enterprise Jun. 1994, p. 461, remote control stand box fan A, left middle side of page.
Patent History
Patent number: D391355
Type: Grant
Filed: Dec 19, 1995
Date of Patent: Feb 24, 1998
Assignee: National Presto Industries, Inc. (Eau Claire, WI)
Inventor: James Alan Hedrington (Chippewa Falls, WI)
Primary Examiner: Lisa Lichtenstein
Law Firm: Merchant, Gould, Smith, Edell, Welter & Schmidt, P.A.
Application Number: 0/48,078
Type: Grant
Filed: Dec 19, 1995
Date of Patent: Feb 24, 1998
Assignee: National Presto Industries, Inc. (Eau Claire, WI)
Inventor: James Alan Hedrington (Chippewa Falls, WI)
Primary Examiner: Lisa Lichtenstein
Law Firm: Merchant, Gould, Smith, Edell, Welter & Schmidt, P.A.
Application Number: 0/48,078
Classifications
Current U.S. Class:
Pedestal Or Pivoting Head Mount (D23/337);
Portable (D23/332);
Heating Element Protected By Grille, Grid, Etc. (D23/335)
International Classification: 2303;
International Classification: 2303;