US2732290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fused vitreous compositions as nutrients
Assignee: —
•
Filing: —
•
Granted: 1956-01-24
•
Expires: 1973-01-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:41
CPC Classifications
C; C05; C05D; C05D9/00; C05D9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A COMPOSITION OF MATTER COMPATIBLE WITH AND CAPABLE OF SUPPLYING NUTRIENTS TO GROWING PLANTS, COMPRISING A SUBSTANTIALLY AMORPHOUS FUSED SYNTHETIC VITREOUS MASS COMPRISING A MATRIX HAVING CHEMICALLY COMBINED THEREWITH AT LEAST ONE MINOR ELEMENT NECESSARY FOR PROPER PLANT GROWTH, SAID VITREOUS MASS MADE OF FUSION AND FRITTING, CONSISTING OF 53 PER CENT TO 98 PER CENT MATRIX AND CHEMICALLY COMBINED THEREWITH FROM 2 PER CENT TO 50 PER CENT OF AT LEAST ONE OF THE FOLLOWING MINOR ELEMENTS IRON, MANGANESE, COPPER, ZINC, BORON, COBALT AND MOLYBDENUM, SAID ENTIRE VITREOUS MASS COMPRISING 26 PER CENT TO 85 PER CENT SIO2 AND SAID VITREOUS MASS HAVING A MINOR ELEMENT EXTRACTION VALUE OF 50 PARTS PER MILLION TO 7500 PARTS PER MILLION WHEN EXTRACTED BY THE AMMONIUM ACETATE EXTRACTION TEST AS HEREIN DISCLOSED.
Claim 2
Dependent Claim
130 words
A COMPOSITION OF MATTER COMPATIBLE WITH AND CAPABLE OF SUPPLYING NUTRIENTS TO GROWING PLANTS, COMPRISING A SUBSTANTIALLY AMORPHOUS FUSED SYNTHETIC VITREOUS MASS COMPRISING A MATRIX HAVING CHEMICALLY COMBINED THEREWITH AT LEAST ONE MINOR ELEMENT NECESSARY FOR PROPER PLANT GROWTH, SAID VITREOUS MASS MADE OF FUSION AND FRITTING, CONSISTING OF 53 PER CENT TO 98 PER CENT MATRIX AND CHEMICALLY COMBINED THEREWITH FROM 2 PER CENT TO 50 PER CENT OF AT LEAST ONE OF THE FOLLOWING MINOR ELEMENTS IRON, MANGANESE, COPPER, ZINC, BORON, COBALT AND MOLYBDENUM, SAID ENTIRE VITREOUS MASS COMPRISING 26 PER CENT TO 85 PER CENT SIO2 AND SAID VITREOUS MASS HAVING A MINOR ELEMENT EXTRACTION VALUE OF 50 PARTS PER MILLION TO 7500 PARTS PER MILLION WHEN EXTRACTED BY THE AMMONIUM ACETATE EXTRACTION TEST AS HEREIN DISCLOSED.
References Cited (Backward Citations)
US959841A
Cited
US1016352A
Cited
US1460888A
Cited
US2192939A
Cited
US2347187A
Cited
US2498912A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-23 | 1959-07-25 | 1960-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-23 | 1963-07-25 | 1964-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-23 | 1967-07-25 | 1968-01-24 | $7700.00 | Window Closed / Lapsed |