Patent US3009804A successfully refreshed from Google Patents.
US3009804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for suppressing the nitrification of ammonium nitrogen present in soil
Assignee: Dow Chemical Co
•
Filing: 1957-04-11
•
Granted: 1961-11-21
•
Expires: 1977-04-11
Abstract
No abstract record available.
Inventors
- 👤 Cleve A I Goring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:19
CPC Classifications
C; C05; C05G; C05G3/00; C05G3/90; Y; Y10; Y10S; Y10S71/00; Y10S71/902
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A METHOD FOR SUPPRESSING THE NITRIFICATION OF AMMONIUM NITROGEN PRESENT IN SOIL AND PREVENTING RAPID LOSS OF AMMONIUM NITROGEN THEREFROM WHICH COMPRISES IMPREGNATING SOIL BELOW THE SOIL SURFACE IN THE GROWING AREA THEREOF IN CONCENTRATION SUFFICIENT TO SUPPRESS NITRIFICATION, WITH A PHENOL COMPOUD, SAID PHENOL COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF (1) PHENOLS HAVING THE FORMULA
Claim 2
Independent Claim
58 words
A METHOD FOR SUPPRESSING THE NITRIFICATION OF AMMONIUM NITROGEN PRESENT IN SOIL AND PREVENTING RAPID LOSS OF AMMONIUM NITROGEN THEREFROM WHICH COMPRISES IMPREGNATING SOIL BELOW THE SOIL SURFACE IN THE GROWING AREA THEREOF IN CONCENTRATION SUFFICIENT TO SUPPRESS NITRIFICATION, WITH A PHENOL COMPOUD, SAID PHENOL COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF (1) PHENOLS HAVING THE FORMULA
References Cited (Backward Citations)
US1983546A
Cited
US2188734A
Cited
US2312801A
Cited
US2314091A
Cited
US2344063A
Cited
US2599827A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-20 | 1965-05-22 | 1965-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-20 | 1969-05-22 | 1969-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-20 | 1973-05-22 | 1973-11-21 | $7700.00 | Window Closed / Lapsed |