US3692529A
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US
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Assignee: LOREN J RYCHMAN
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Filing: 1970-09-08
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Granted: 1972-09-19
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Expires: 1990-09-08
Abstract
Abstract THERE IS PROVIDED A PROCESS FOR MIXING FINELY DIVIDED SOLIDS WITH LARGER GRANULAR CARRIERS TO BOTAIN A HOMOGENEOUS FREE-FLOWING PRODUCT WHICH MAY BE SUBSEQENTLY BLENDED WITH A GRANULAR SOLID SUCH AS FERTILIZERS TO PRODUCE A COMPOSITE FERTILIZER MATERIAL.
Inventors
- 👤 Loren J Rychman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:48
CPC Classifications
B; B01; B01J; B01J2/00; B01J2/006; C; C05; C05D; C05D9/00; C05D9/02; C05G; C05G3/00; C05G3/20; C05G3/30; Y; Y10; Y10S; Y10S71/00; Y10S71/904
Claims Analysis
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References Cited (Backward Citations)
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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) | 1975-09-19 | 1976-03-20 | 1976-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-19 | 1980-03-20 | 1980-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-19 | 1984-03-20 | 1984-09-19 | $7700.00 | Window Closed / Lapsed |