US3242237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing slow release fertilizer particles
Assignee: Sunoco Inc
•
Filing: 1963-09-11
•
Granted: 1966-03-22
•
Expires: 1983-09-11
Abstract
No abstract record available.
Inventors
- 👤 Steven G Belak
- 👤 Robert H Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:08
CPC Classifications
B; B01; B01J; B01J2/00; B01J2/02; B01J2/06; C; C05; C05G; C05G5/00; C05G5/30; C05G5/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
METHOD OF PREPARING SOLID SLOW RELEASE FERTILIZER PARTICLES WHICH COMPRISES FORMING A FLUID FERTILIZER COMPOSITION COMPRISING WATER SOLUBLE SOLID FERTILIZER FINELY DISPERSED IN MOLTEN WAX, FLOWING A NARROW STREAM OF SAID FLUID FERTILIZER COMPOSITION DOWNWARDLY AT ELEVATED TEMPERATURE TOWARD A BODY OF AQUEOUS LIQUID SATURATED WITH RESPECT TO SAID SOLID FERTILIZER AND MAINTAINED AT A TEMPERATURE BELOW THE SOLIFIFICATION POINT OF THE COMPOSITION, DROPPING THE COMPOSITION INTO SAID SATURATED AQUEOUS LIQUID IN THE FORM OF DROPLETS, WHEREBY THE COMPOSITION
Claim 2
Dependent Claim
79 words
METHOD OF PREPARING SOLID SLOW RELEASE FERTILIZER PARTICLES WHICH COMPRISES FORMING A FLUID FERTILIZER COMPOSITION COMPRISING WATER SOLUBLE SOLID FERTILIZER FINELY DISPERSED IN MOLTEN WAX, FLOWING A NARROW STREAM OF SAID FLUID FERTILIZER COMPOSITION DOWNWARDLY AT ELEVATED TEMPERATURE TOWARD A BODY OF AQUEOUS LIQUID SATURATED WITH RESPECT TO SAID SOLID FERTILIZER AND MAINTAINED AT A TEMPERATURE BELOW THE SOLIFIFICATION POINT OF THE COMPOSITION, DROPPING THE COMPOSITION INTO SAID SATURATED AQUEOUS LIQUID IN THE FORM OF DROPLETS, WHEREBY THE COMPOSITION
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |