US2867944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating soil by non-ionic surface active agents
Assignee: Agronomists Res Corp
•
Filing: 1954-04-20
•
Granted: 1959-01-13
•
Expires: 1974-04-20
Abstract
No abstract record available.
Inventors
- 👤 Lawrence W Fletcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:36
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/30; Y; Y10; Y10S; Y10S516/00; Y10S516/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
THE METHOD OF TREATING SOIL TO IMPROVE ITS WATER PENETRATION, ABSORPTION AND RETENTION PROPERTIES WHICH COMPRISES APPLYING THERETO A COMPOSITION CONSISTING ESSENTIALLY OF A NON-IONIC SURFACE ACTIVE AGENT AND A VEHICLE THEREFOR.
Claim 2
Independent Claim
32 words
THE METHOD OF TREATING SOIL TO IMPROVE ITS WATER PENETRATION, ABSORPTION AND RETENTION PROPERTIES WHICH COMPRISES APPLYING THERETO A COMPOSITION CONSISTING ESSENTIALLY OF A NON-IONIC SURFACE ACTIVE AGENT AND A VEHICLE THEREFOR.
References Cited (Backward Citations)
US2258291A
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US2289974A
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US2412510A
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US2396513A
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US2576080A
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US2635978A
Cited
US2614917A
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US2652379A
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US2751368A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-12 | 1962-07-14 | 1963-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-12 | 1966-07-14 | 1967-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-12 | 1970-07-14 | 1971-01-13 | $7700.00 | Window Closed / Lapsed |