Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Pre-cast concrete unit for manholes
D246384 Pre-cast concrete unit for manholes
Patent Drawings:Drawing: D246384-2    
« 1 »

(1 images)

Inventor: Brown, et al.
Date Issued: November 15, 1977
Application: 05/712,761
Filed: August 9, 1976
Inventors: Brown; Brian E. (Burlington, CA)
Hall; Alfred G. (London, CA)
Assignee: Moduloc Concrete Products (London) Ltd. (Concorde, CA)
Primary Examiner: Word; A. Hugo
Assistant Examiner:
Attorney Or Agent: Miller; Davidson C.
U.S. Class: D25/36
Field Of Search: 52/19; 52/20; 52/21; 406/25; D25/31; D25/80; D25/81; D25/87; D25/90; D25/91; D25/97; D25/98
International Class:
U.S Patent Documents: D30695; D30697; 315836; 2346361
Foreign Patent Documents: 1,364,447
Other References:









Abstract:
Claim: The ornamental design for a pre-cast concrete unit for manholes, as shown and described.
Description: FIG. 1 is a top perspective view of the design;

FIG. 2 is a bottom perspective view thereof.

* * * * *
 
 
  Recently Added Patents
Encoding method and encoding device, decoding method and decoding device and transcoding method and transcoder for multi-object audio signals
Interest point detection
Method and system for distributing load by redirecting traffic
Layout design defect repair based on inverse lithography and traditional optical proximity correction
Method and apparatus for controlling power supply
Semiconductor apparatus
Touch-sensitive device and communication device
  Randomly Featured Patents
Peptides and methods of use as therapeutics and screening agents
Water-borne polyester coated imaging member
Method for removing acid gases from flue gas
Graphical display apparatus having a coordinate correction circuit
Communication in dual protocol environments
Sampler and an apparatus for hydrogen determination in molten metal
Mobile station for an unmanned vehicle
Fluid spindle bearing vent
Measurement apparatus and method for the adjustment of test/measurement parameters
Grouting composition and method