Patent US2687358A successfully refreshed from Google Patents.
US2687358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized soil and a process of stabilizing it
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1950-12-12
•
Granted: 1954-08-24
•
Expires: 1970-12-12
Abstract
No abstract record available.
Inventors
- 👤 Edward C Allberry
- 👤 Stanley W Hawkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:10
CPC Classifications
C; C09; C09K; C09K17/00; C09K17/14; Y; Y10; Y10S; Y10S106/00; Y10S106/90; Y10S260/00; Y10S260/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
SOIL CONTAINING BETWEEN 0.05 AND 1.0% BY WEIGHT OF AT LEAST ONE POLYMETHINE COLOURING MATERIAL HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
19 words
SOIL CONTAINING BETWEEN 0.05 AND 1.0% BY WEIGHT OF AT LEAST ONE POLYMETHINE COLOURING MATERIAL HAVING THE GENERAL FORMULA
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) | 1957-08-23 | 1958-02-22 | 1958-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-23 | 1962-02-22 | 1962-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-23 | 1966-02-22 | 1966-08-24 | $7700.00 | Window Closed / Lapsed |