Patent US2748174A successfully refreshed from Google Patents.
Patent US2828182A successfully refreshed from Google Patents.
US2828182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Use of chelating agents in fertilizers to enhance the growth of plant life
Assignee: Individual
•
Filing: 1955-03-31
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Granted: 1958-03-25
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Expires: 1975-03-31
Abstract
No abstract record available.
Inventors
- 👤 Nicholas D Cheronis
- 👤 Schatz Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:18
CPC Classifications
C; C05; C05D; C05D9/00; C05D9/02; Y; Y10; Y10S; Y10S71/00; Y10S71/02; Y10S71/903
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
IN A METHOD OF ENHANCING THE GROWTH OF PLANT LIFE IN EARTH SOILS, THE STEP WHICH COMPRISES ADDING TO THE SOIL IN WHICH THE PLANT LIFE IS GROWN A SMALL AMOUNT OF A MICROBIOLOGICALLY STABLE ORGANIC CHELATING AGENT.
Claim 2
Dependent Claim
38 words
IN A METHOD OF ENHANCING THE GROWTH OF PLANT LIFE IN EARTH SOILS, THE STEP WHICH COMPRISES ADDING TO THE SOIL IN WHICH THE PLANT LIFE IS GROWN A SMALL AMOUNT OF A MICROBIOLOGICALLY STABLE ORGANIC CHELATING AGENT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |