The dashed broken lines in the drawings illustrate portions of the exhalation port for a breathing circuit which form no part of the claimed design. The dot-dash broken lines define the bounds of the claimed design and forms no part thereof.
The dashed broken lines in the drawings illustrate portions of the exhalation port for a breathing circuit which form no part of the claimed design. The dot-dash broken lines define the bounds of the claimed design and forms no part thereof.
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| Rugged Snow Roof Rake, posted at roofrake.com, earliest date posted on Jan. 17, 2008, [online], acquired on Aug. 14, 2019. Available from Internet, <URL: http://www.roofrake.com/Productpages/ruggedroofrake.asp> (Year: 2008). |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 29643468 | Apr 2018 | US |
| Child | 29753770 | US |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 29592001 | Jan 2017 | US |
| Child | 29643468 | US |