The phrase “PETRO-PIPE” shown in
The logo including the letters “SPI” shown in
The phrase “PETRO-PIPE” shown in
The logo including the letters “SPI” shown in
Number | Name | Date | Kind |
---|---|---|---|
4785963 | Magley | Nov 1988 | A |
5184747 | Nolte | Feb 1993 | A |
D344242 | Weise | Feb 1994 | S |
D379851 | Mathison | Jun 1997 | S |
6360908 | Kline | Mar 2002 | B1 |
6968968 | Buckley | Nov 2005 | B2 |
D646363 | Bertram | Oct 2011 | S |
D676943 | Kluss et al. | Feb 2013 | S |
D709369 | van de Klippe | Jul 2014 | S |
D711511 | Van Der Merwe | Aug 2014 | S |
D724699 | Wyne | Mar 2015 | S |
D739493 | Wyne | Sep 2015 | S |
D762825 | Walker | Aug 2016 | S |
D777878 | Morris | Jan 2017 | S |
D793525 | Morris | Aug 2017 | S |
D836755 | Dale | Dec 2018 | S |
D849899 | Bryant et al. | May 2019 | S |
10703547 | Filho | Jul 2020 | B2 |
20080011376 | Belford | Jan 2008 | A1 |
20150369411 | Kieper | Dec 2015 | A1 |
Entry |
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SPI Patented Petro-Plugs; Website Copyright Date 2022; Visited Online Feb. 4, 2022; https://www.oilbarriers.com/spi-patented-petro-plugs (Year: 2022). |