Manhole safety cross
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Description
Claims
I claim the ornamental design for a manhole safety cross, as shown.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
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- Allegro Industries Twitter https://twitter.com/allegroind Posted Dec. 11, 2018 (Year: 2018).
- Manhole Safety Cross https://www.manholesafetycross.com/ Available Oct. 19, 2018 (Year: 2018).
- Manhole-Safety-Cross Spec Sheet https://www.allegrosafety.com/wp-content/uploads/2018/11/9406-24A_9406-36A_9406-24_9406-30-Manhole-Safety-Cross.pdf Uploaded Nov. 2018 (Year: 2018).
Patent History
Patent number: D878634
Type: Grant
Filed: May 12, 2018
Date of Patent: Mar 17, 2020
Assignee: (Mesa, AZ)
Inventor: Steven Collins (Mesa, AZ)
Primary Examiner: Leanne Was-Englehart
Application Number: 29/647,441
Type: Grant
Filed: May 12, 2018
Date of Patent: Mar 17, 2020
Assignee: (Mesa, AZ)
Inventor: Steven Collins (Mesa, AZ)
Primary Examiner: Leanne Was-Englehart
Application Number: 29/647,441
Classifications