US3285731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnesium potassium phosphate-containing fertilizer and process
Assignee: WR Grace and Co
•
Filing: 1963-07-22
•
Granted: 1966-11-15
•
Expires: 1983-07-22
Abstract
No abstract record available.
Inventors
- 👤 Murrell L Salutsky
- 👤 James M Sanborn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:34
CPC Classifications
C; C05; C05B; C05B9/00; C05B7/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
23 words
A COMPLETE NON-BURNING PARTICULATE SOLID FERTILIZER CONSISTING ESSENTIALLY OF MAGNESIUM AMMONIUM PHOSPHATE HAVING INTIMATELY BLENDED THEREWITH FROM 1 TO 99% MAGNESIUM POTASSIUM PHOSPHATE.
Claim 2
Dependent Claim
23 words
A COMPLETE NON-BURNING PARTICULATE SOLID FERTILIZER CONSISTING ESSENTIALLY OF MAGNESIUM AMMONIUM PHOSPHATE HAVING INTIMATELY BLENDED THEREWITH FROM 1 TO 99% MAGNESIUM POTASSIUM PHOSPHATE.
Claim 3
Independent Claim
24 words
THE METHOD OF PREPARING A COMPLETE NON-BURNING FERTILIZER COMPOSITION COMPRISING GRANULATING MAGNESIUM AMMONIUM PHOSPHATE WITH 1 TO 99% BY WEIGHT OF MAGNESIUM POTASSIUM PHOSPHATE.
Claim 4
Independent Claim
24 words
THE METHOD OF PREPARING A COMPLETE NON-BURNING FERTILIZER COMPOSITION COMPRISING GRANULATING MAGNESIUM AMMONIUM PHOSPHATE WITH 1 TO 99% BY WEIGHT OF MAGNESIUM POTASSIUM PHOSPHATE.
References Cited (Backward Citations)
US3125411A
Cited
US3126254A
Cited
GB362069A
Cited
GB492595A
Cited
US2270518A
Cited
US2350982A
Cited
GB741378A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |