US3565599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Urease inhibited urea-containing compositions
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1969-05-05
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Granted: 1971-02-23
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Expires: 1989-05-05
Abstract
Abstract UREA-CONTAINING FERTILIZERS COMPRISING A BORON-CONTAINING UREASE INHIBITOR ARE IMPROVED IN REGARD TO UREASE INHIBITIVE PROPERTIES BY THE ADDITION THERETO OF VARIOUS COMPOUNDS GENERALLY EXHIBITING HYDROPHOBIC CHARACTERISTICS, E.G., ORGANIC ACIDS, ESTERS AND AMIDES; HYDROCARBONS SUCH AS WHITE OILS; LONG CHAIN AMINES; VEGETAABLE OILS; ORGANOSILICONES; PLASTIC POLYMERS AND RESINS; ETC. THIS ADDITION RESULTS IN INCREASED INHIBITION AGAINST THE RAPID VOLATILIZATION OF AMMONIA THEREFROM WHEN THE FERTILIZERS ARE SURFACE-APPLIED TO SOIL.
Inventors
- 👤 Kamil M Sor
- 👤 John A Pelissier
- 👤 Ross Latham Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:42
CPC Classifications
C; C05; C05C; C05C9/00; C05C9/005
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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |