Patent US2576665A successfully refreshed from Google Patents.
US3697245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated fertilizer
Assignee: FERTILIZER INDUSTRIES Inc
•
Filing: 1970-08-12
•
Granted: 1972-10-10
•
Expires: 1990-08-12
Abstract
Abstract TENACIOUS COATINGS OF FERTILIZER SUPPLEMENTS ARE APPLIED TO GRANULAR HIGH ANALYSIS FERTILIZERS, BY ADDING, IN ORDER, MINOR AMOUNTS OF MINERAL OIL AND OF AQUEOUS CALCIUM LIGNOSULFONATE AND THEN SUBSTANTIAL AMONTS OF FERTILIZER SUPPLEMENTS, MAINTAINING THE GRANULES IN MOTION DURING AND AFTER ADDITION UNTIL THE ADDED MATERIAL UNIFORMLY COATS THE GRANULES.
Inventors
- 👤 Joseph T Dilday
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:47
CPC Classifications
C; C05; C05G; C05G3/00; C05G3/60; A; A01; A01N; A01N25/00; A01N25/26; C05C; C05C9/00; C05C9/005
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) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |