Pyramidal diffuser
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Description
The broken lines adjacent to the surfaces containing shading, which show the boundary of the claimed design, and all other portions of the design shown in broken lines shown in the figures form no part of the claimed design.
Claims
The ornamental design for a pyramidal diffuser, as shown and described.
Referenced Cited
U.S. Patent Documents
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Patent History
Patent number: D581090
Type: Grant
Filed: Apr 7, 2008
Date of Patent: Nov 18, 2008
Assignee: Acoustics First Corporation (Richmond, VA)
Inventors: C. Nicholas Colleran, Jr. (Richmond, VA), Samuel J. Colleran (Richmond, VA), Ryan L. Larkin (Richmond, VA)
Primary Examiner: Freda S. Nunn
Assistant Examiner: Kevin K Rudzinski
Attorney: Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
Application Number: 29/306,330
Type: Grant
Filed: Apr 7, 2008
Date of Patent: Nov 18, 2008
Assignee: Acoustics First Corporation (Richmond, VA)
Inventors: C. Nicholas Colleran, Jr. (Richmond, VA), Samuel J. Colleran (Richmond, VA), Ryan L. Larkin (Richmond, VA)
Primary Examiner: Freda S. Nunn
Assistant Examiner: Kevin K Rudzinski
Attorney: Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
Application Number: 29/306,330
Classifications
Current U.S. Class:
With Refractive Rib Or Groove, E.g., Prismatic, Etc. (D26/122)