SAKRAIDA V. AG PRO, INC., 425 U. S. 273 (1976)
Subscribe to Cases that cite 425 U. S. 273
Case Resources
Search this Case
in Google Scholar
on the Web
Google Web Search
MSN Web Search
Yahoo! Web Search
in the News
Google News Search
Google News Archive Search
Yahoo! News Search
in the Blogs
BlawgSearch.com Search
Google Blog Search
Technorati Blog Search
in other Databases
Google Book Search
Online Research Resources
Cornell LII
Cornell Wex Dictionary & Encyclopedia
LLRX.com - Legal Research
Expert Witness Directory
Nolo Consumer & Business
US Court Forms
USA Constitution Annotated
WashLaw Directory
World LII
Online Case Law
Cornell LII
FastCase $
Lexis $
LexisOne
Loislaw $
USSCPlus.com $
VersusLaw $
Link to the Case Preview: http://supreme.justia.com/us/425/273/
Link to the Full Text of Case: http://supreme.justia.com/us/425/273/case.html
U.S. Supreme Court
Sakraida v. Ag Pro, Inc., 425 U.S. 273 (1976)
Sakraida v. Ag Pro, Inc.
No. 75-110
Argued March 3, 1976
Decided April 20, 1976
425 U.S. 273
Syllabus
Respondent's patent covering a water flush system to remove cow manure from the floor of a dairy barn held invalid for obviousness, it being a combination patent all the elements of which are old in the dairy business and were well known before the filing of the patent application. The system's exploitation of the principle of gravity to effect the abrupt release of water "did not produce a new or different function' . . . within the test of validity of combination patents." Anderson's Black Rock v. Pavement Co., 396 U. S. 57, 396 U. S. 60. Pp. 425 U. S. 274-283.
512 F.2d 141, reversed.
BRENNAN, J., delivered the opinion for a unanimous Court.