Production of urea-ammonium polyphosphates from urea phosphate
UST998001I4 · kind I4 · defensive publication
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12Claims
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Key dates
| Filing date | Aug 31, 1979 |
| Grant date | Sep 2, 1980 |
| Priority date | — |
| Expiry date | Aug 31, 1999 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.