This is our record of Amazon price changes for Don't File a Patent New 4th Edition or Patent it Yourself, File a Patent Application on your invention, Avoid the Patent Office, Inventions, Inventors: The Patent Office doesn't want you to read this (B01DJFM5T6) since we began monitoring it.
| Price Type | Lowest Ever | Highest Ever | Current + | Average |
|---|---|---|---|---|
| Amazon | (Dec 01, 2025) | (Dec 01, 2025) | 0,00 € (Dec 01, 2025) |
Amazon Price
Dec 01, 2025 12:06 AM
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