US2893166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized soil and method of producing it with quaternary nitrogen salt
Assignee: Union Starch and Refining Co
•
Filing: 1954-09-09
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Granted: 1959-07-07
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Expires: 1974-09-09
Abstract
No abstract record available.
Inventors
- 👤 George R Bauwin
- 👤 Frank X Grossi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:45
CPC Classifications
C; C09; C09K; C09K17/00; C09K17/14; Y; Y10; Y10S; Y10S106/00; Y10S106/90
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
74 words
A STABILIZED SURFACE SOIL HAVING IMPROVED STRUCTURE ADAPTED TO PERMIT WATER TO INFILTRATE READILY THEREIN, ALLOW EXCESS WATER TO BE REMOVED QUICKLY THEREFROM AND PERMIT EXCHANGE OF GASES THROUGH THE PORES THEREOF COMPRISING DISPERSED THEREIN ABOUT 0.01% TO ABOUT 0.1% BASED ON THE WEIGHT OF THE SURFACE SOIL OF A QUATERNARY NITROGEN SALT HAVING DIRECTLY ATTACHED TO THE QUATERNARY NITROGEN TWO SUBSTITUENT GROUPS EACH OF WHICH CONTAINS 6-22 CARBON ATOMS IN A STRAIGHT CHAIN.
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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) | 1962-07-06 | 1963-01-05 | 1963-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-06 | 1967-01-05 | 1967-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-06 | 1971-01-05 | 1971-07-07 | $7700.00 | Window Closed / Lapsed |