Process for preparation of microporous membranes of controlled flow characteristics
UST103601I4 · kind I4 · defensive publication
18Cited by
0References
16Claims
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Key dates
| Filing date | Dec 3, 1982 |
| Grant date | Nov 1, 1983 |
| Priority date | — |
| Expiry date | Dec 3, 2002 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.