US3647610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preservation of aqueous dispersions with bromocyanoacetamides
Assignee: Dow Chemical Co
•
Filing: 1970-07-31
•
Granted: 1972-03-07
•
Expires: 1990-07-31
Abstract
Abstract A METHOD USEFUL FOR PRESERVING AQUEOUS DISPERSIONS OF BIODEGRADABLE CELLULOSIC MATTER SUCH AS WOOD PULP SUSPENSIONS FROM MICROBIAL ATTACH COMPRISES ADDING TO THE DISPERSION AN ANTIMICROBIAL AMOUNT OF A BROMOCYANOACETAMIDE COMPOUND SUCH AS 2,2-DIBROMO-2-CYANOACETAMIDE. IN A PREFERRED EMBODIMENT, THE METHOD COMPRISES THE FURTHER STEP OF TREATING THE DISPERSION TO WHICH THE BROMOCYANOACETAMIDE COMPOUND HAS BEEN ADDED WITH SUFFICIENT OF A BASE TO INACTIVATE SUCH COMPOUND PRIOR TO DISCHARGING ANY OF THE DISPERSION INTO THE ENVIRONMENT.
Inventors
- 👤 Paul A Wolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:15
CPC Classifications
A; A01; A01N; A01N37/00; A01N37/34; C; C02; C02F; C02F1/00; C02F1/50
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |