US3027249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for improving storage properties and pourability of hygroscopic fertilizers
Assignee: Individual
•
Filing: 1957-05-13
•
Granted: 1962-03-27
•
Expires: 1977-05-13
Abstract
No abstract record available.
Inventors
- 👤 Jost Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:21
CPC Classifications
B; B01; B01J; B01J2/00; B01J2/30; C; C05; C05D; C05D9/00; C05D9/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2280451A
Cited
US2403419A
Cited
US2399987A
Cited
US2702747A
Cited
US2806773A
Cited
US2829040A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-26 | 1965-09-25 | 1966-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-26 | 1969-09-25 | 1970-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-26 | 1973-09-25 | 1974-03-27 | $7700.00 | Window Closed / Lapsed |