Legal Opinion
Ajem Laboratories, Inc., and Centri-Spray Corporation v. C. M. Ladd Co., Inc., and Charles M. Ladd
Court of Appeals for the Sixth Circuit
Decided April 29, 1970No. 19643PublishedCited by 13 opinions
1Opinion of the Court
EDWARDS, Circuit Judge.
The question posed by this case is whether the United States District Court for the Eastern District of Michigan was right in holding appellants’ patent No. 2,979,062 invalid. The patent, issued April 11, 1961, covered a commercially successful automatic power washing machine for cleaning automobile engine heads and similar large castings. The District Court held the patent invalid because the device had been “on sale” for more than one year before the patent was applied for.
Appellants Ajem Laboratories, Inc., (owner of the patent in suit) and Centri-Spray Corporation…
2Cases cited18 opinions
- Railway Co. v. SaylesSupreme Court of the United States · 1878
- Corona Cord Tire Co. v. Dovan Chemical Corp.Supreme Court of the United States · 1928
- Muncie Gear Works, Inc. v. Outboard, Marine & Manufacturing Co.Supreme Court of the United States · 1942
- Schriber-Schroth Co. v. Cleveland Trust Co.Supreme Court of the United States · 1938
- Monroe Auto Equipment Company v. Heckethorn Manufacturing & Supply CompanyCourt of Appeals for the Sixth Circuit · 1964
13 more not listed; retrieve them via the Exa API.
3Cited by13 opinions
- In Re Yarn Processing Patent Validity Litigation. Sauquoit Fibers Company v. Leesona Corporation, Kayser-Roth Corporation (In Its Own Name and D/B/A Kayser-Roth Hosiery Companyand Kayser-Roth Hosiery Co., Inc.) v. Leesona Corporation, Leesona Corporation v. The Duplan CorporationCourt of Appeals for the Fifth Circuit · 1974
- Cardinal of Adrian, Inc., Cross-Appellee v. Peerless Wood Products, Inc., Cross-AppellantsCourt of Appeals for the Sixth Circuit · 1975
- General Motors Corp. v. Toyota Motor Co., Ltd.District Court, S.D. Ohio · 1979
- Sauquoit Fibers Co. v. Leesona Corp.Court of Appeals for the Fifth Circuit · 1974
- Stewart-Warner Corporation, Cross-Appellee v. The City of Pontiac, Michigan, and American Sign & Indicator Corporation, Cross-AppellantsCourt of Appeals for the Sixth Circuit · 1983
8 more not listed; retrieve them via the Exa API.