Patent US1518672A successfully refreshed from Google Patents.
Patent US2978309A successfully refreshed from Google Patents.
US2978309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of iron chlorosis in chlorophyllaceous plants
Assignee: GAF Chemicals Corp
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Filing: 1956-10-26
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Granted: 1961-04-04
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Expires: 1976-10-26
Abstract
No abstract record available.
Inventors
- 👤 Saul R Buc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:00
CPC Classifications
C; C05; C05D; C05D9/00; C05D9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
THE METHOD OF CONTROLLING IRON CHLOROSIS IN GROWING PLANTS IN CALCAREOUS SOILS HAVING A PH RANGE OF 7.5 TO 8.5 WHICH COMPRISES SPRAYING SAID SOIL WITH AN AQUEOUS SOLUTION CONTAINING AN ANTICHLOROTIC AMOUNT OF A SALT SELECTED FROM THE GROUP CONSISTING OF WATER SOLUBLE SALTS OF FERROCYANIC AND FERRICYANIC ACIDS, SAID AMOUNT BEING FROM 5 TO 800 POUNDS PER ACRE.
Claim 2
Independent Claim
60 words
THE METHOD OF CONTROLLING IRON CHLOROSIS IN GROWING PLANTS IN CALCAREOUS SOILS HAVING A PH RANGE OF 7.5 TO 8.5 WHICH COMPRISES SPRAYING SAID SOIL WITH AN AQUEOUS SOLUTION CONTAINING AN ANTICHLOROTIC AMOUNT OF A SALT SELECTED FROM THE GROUP CONSISTING OF WATER SOLUBLE SALTS OF FERROCYANIC AND FERRICYANIC ACIDS, SAID AMOUNT BEING FROM 5 TO 800 POUNDS PER ACRE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-03 | 1964-10-03 | 1965-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-03 | 1968-10-03 | 1969-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-03 | 1972-10-03 | 1973-04-04 | $7700.00 | Window Closed / Lapsed |