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Patent US3830825A successfully refreshed from Google Patents.
US3830825A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Zinc sulf-hydroxy allantoinate
Assignee: Individual
•
Filing: 1971-07-23
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Granted: 1974-08-20
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Expires: 1991-07-23
Abstract
Abstract ZINC SULF-HYDROXY ALLANTIONATE HAS A LONG-CONTINUING FUNGICIDAL PROPERTY, RELEASING ITS ZINC IONS GRADUALLY. IT IS PARTICULARLY USEFUL FOR CONTROLING THOSE FUNGI WHICH TEND TO FLOURISH WHEN ANTIBIOTICS ARE EMPLOYED AS BACTERICIDES.
Inventors
- 👤 H Margraf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:06
CPC Classifications
C; C07; C07D; C07D233/00; C07D233/54; C07D233/66; C07D233/88
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-19 | 1978-02-18 | 1978-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-19 | 1982-02-18 | 1982-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-19 | 1986-02-18 | 1986-08-20 | $7700.00 | Window Closed / Lapsed |