US2951753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making soil conditioning materials
Assignee: Akzo Nobel UK PLC
•
Filing: 1952-07-28
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Granted: 1960-09-06
•
Expires: 1972-07-28
Abstract
No abstract record available.
Inventors
- 👤 Groves Kenneth Deane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:13
CPC Classifications
E; E02; E02D; E02D17/00; E02D17/20; Y; Y10; Y10S; Y10S47/00; Y10S47/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A METHOD OF MAKING A SOIL-CONDITIONING MATERIAL WHICH COMPRISES IMPREGNATING A DILATED NON-FIBROUS PELLICLE OF A WATER-INSOLUBLE HYDROPHILIC FILM-FORMING MATERIAL WITH A LIQUID MEDIUM COMPRISING AN AUXILIARY SOILCONDITIONING AGENT, DRYING THE PELLICLE, AND REDUCING THE PELLICLE TO A MASS OF PARTICLES HAVING THE AUXILIARY SOIL CONDITIONING AGENT INTIMATELY ASSOCIATED THEREWITH.
Claim 2
Independent Claim
50 words
A METHOD OF MAKING A SOIL-CONDITIONING MATERIAL WHICH COMPRISES IMPREGNATING A DILATED NON-FIBROUS PELLICLE OF A WATER-INSOLUBLE HYDROPHILIC FILM-FORMING MATERIAL WITH A LIQUID MEDIUM COMPRISING AN AUXILIARY SOILCONDITIONING AGENT, DRYING THE PELLICLE, AND REDUCING THE PELLICLE TO A MASS OF PARTICLES HAVING THE AUXILIARY SOIL CONDITIONING AGENT INTIMATELY ASSOCIATED THEREWITH.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-06 | 1964-03-07 | 1964-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-06 | 1968-03-07 | 1968-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-06 | 1972-03-07 | 1972-09-06 | $7700.00 | Window Closed / Lapsed |