US2500770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making water-soluble materials water repellent
Assignee: Standard Oil Development Co
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Filing: 1947-03-14
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Granted: 1950-03-14
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Expires: 1967-03-14
Abstract
No abstract record available.
Inventors
- 👤 Jerry A Pierce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:44
CPC Classifications
C; C05; C05D; C05D9/00; A; A23; A23P; A23P10/00; A23P10/30; A61; A61K; A61K9/00; A61K9/20; A61K9/28; A61K9/2806; A61K9/2833; A61K9/2853; A61K9/48; A61K9/50; A61K9/5005; A61K9/5021; A61K9/5031; B; B01; B01J; B01J2/00; B01J2/30; C01; C01D; C01D3/00; C01D3/26; Y; Y10; Y10S; Y10S8/00; Y10S8/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
A HYGROSCOPIC WATER-SOLUBLE SOLID BODY HAVING INCORPORATED ON THE SURFACE THEREOF, A THIN COATING OF A VAPORIZABLE ORGANO-SILICON HALIDE WHEREBY THE BODY IS RENDERED NON-HYGROSCOPIC WITHOUT DESTROYING ITS WATER SOLUBILITY.
Claim 2
Dependent Claim
30 words
A HYGROSCOPIC WATER-SOLUBLE SOLID BODY HAVING INCORPORATED ON THE SURFACE THEREOF, A THIN COATING OF A VAPORIZABLE ORGANO-SILICON HALIDE WHEREBY THE BODY IS RENDERED NON-HYGROSCOPIC WITHOUT DESTROYING ITS WATER SOLUBILITY.
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) | 1953-03-13 | 1953-09-12 | 1954-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-13 | 1957-09-12 | 1958-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-13 | 1961-09-12 | 1962-03-14 | $7700.00 | Window Closed / Lapsed |