Patent US2957834A successfully refreshed from Google Patents.
US2957834A
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US
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Method of stabilizing soil with an aqueous solution of a cold water swelling starch and a resin
Assignee: Scholtens Chemische Fabrieken NV
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Filing: 1954-03-22
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Granted: 1960-10-25
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Expires: 1974-03-22
Abstract
No abstract record available.
Inventors
- 👤 Moller Fredrik Andre
- 👤 Lolkema Jan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:10
CPC Classifications
C; C09; C09K; C09K17/00; C09K17/14; C09K17/18; C09K17/32; Y; Y10; Y10S; Y10S47/00; Y10S47/09; Y10S71/00; Y10S71/903
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
49 words
A METHOD OF STABILIZING THE SOIL SURFACE AGAINST EROSION, WHICH COMPRISES DISPERSING A COLD WATER SWELLING STARCH IN COLD WATER AND UNIFORMLY SPRAYING THE DISPERSION OF PREPARED ON THE SURFACE OF THE SOIL, TO PROVIDE A LAYER OF SAID COLD WATER SWELLING STARCH ON THE SURFACE OF THE SOIL.
Claim 2
Independent Claim
49 words
A METHOD OF STABILIZING THE SOIL SURFACE AGAINST EROSION, WHICH COMPRISES DISPERSING A COLD WATER SWELLING STARCH IN COLD WATER AND UNIFORMLY SPRAYING THE DISPERSION OF PREPARED ON THE SURFACE OF THE SOIL, TO PROVIDE A LAYER OF SAID COLD WATER SWELLING STARCH ON THE SURFACE OF THE SOIL.
Claim 3
Dependent Claim
50 words
A METHOD ACCORDING TO CLAIM 1 IN WHICH THE COLD WATER SWELLING STARCH CONTAINS AN ALDEHYDE AND A SYNTHETIC RESIN COMPONENT CAPABLE OF FORMING A SYNTHETIC RESIN-LIKE CONDENSATION PRODUCT WITH THE FORMALDEHYDE, SAID SYNTHETIC RESIN COMPONENT BEING SELECTED FROM THE GROUP CONSISTING OF UREA, THIOUREA, MELAMINE, PHENOLS, DICYANODIAMIDE AND ACETONE.
References Cited (Backward Citations)
US1988307A
Cited
US2030461A
Cited
US2341800A
Cited
US2648165A
Cited
US2527581A
Cited
US2583268A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |