US3533776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prilling process for the manufacture of granules of materials adapted for fertilizers or other uses
Assignee: Fisons Fertilizers Ltd
•
Filing: 1966-11-29
•
Granted: 1970-10-13
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Expires: 1986-11-29
Abstract
No abstract record available.
Inventors
- 👤 Roy Victor Coates
- 👤 Murray Francis Curtis
- 👤 Gordon John Harris
- 👤 Peter Sidney Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:30
CPC Classifications
B; B01; B01J; B01J2/00; B01J2/30; B01J2/003; B01J2/006; B01J2/02; B01J2/04; C; C05; C05G; C05G5/00; C05G5/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB243192A
Cited
US2382298A
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US2991170A
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US3085870A
Cited
US3048887A
Cited
US3231413A
Cited
US3186828A
Cited
US3398191A
Cited
US3379496A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-12 | 1974-04-13 | 1974-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-12 | 1978-04-13 | 1978-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-12 | 1982-04-13 | 1982-10-13 | $7700.00 | Window Closed / Lapsed |