Splitting hairs but,
The patents are not public domain.
When a patebt expires, it becomes part of the public domain.
The patent publication is made public ie:
| Earliest Publication Date: |
01-31-2013 |
| Class / Subclass: |
455/414.100 |
Patent Number: |
9,002,331 |
| First Named Inventor: |
Patrick O'Neal Nunally , Escondido, CA (US) all Inventors
|
Issue Date of Patent: |
04-07-2015 |
