Be sure you keep using it. I only used mine for voicemail, and they finally decided they wanted the number back. I started to send a text every few weeks, but doesn't seem to have been enough for voice to just receive them.
To be fair, I did have the opportunity to claim the number again.
Some start stop engines have auxiliary oil pumps. I don't know much about them besides random research I have done in the past out of curiosity.
Napa also claims some vehicles have auxiliary water and transmission pumps as well.
To be fair, even though ads didn't make you want to buy anything, the tax write-off was the same.
I believe you are conflating patents with copyrights.