Heat retaining tube base for use in a semiconductor wafer head processing apparatus
USD404375S · kind S · design
8Cited by
4References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 12, 1998 |
| Grant date | Jan 19, 1999 |
| Priority date | — |
| Expiry date | Jan 19, 2013 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.