Air flow directing and controlling fixture for heating and ventilating devices
USD307632S · kind S · design
17Cited by
4References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 24, 1987 |
| Grant date | May 1, 1990 |
| Priority date | — |
| Expiry date | May 1, 2004 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.