US2582215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of rendering ceramic materials water repellent
Assignee: Dow Silicones Corp
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Filing: 1950-02-23
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Granted: 1952-01-15
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Expires: 1970-02-23
Abstract
No abstract record available.
Inventors
- 👤 Hyde James Franklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:15
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/52; C04B41/80; C04B41/81; C04B41/89
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
A METHOD OF RENDERING CERAMIC SURFACES WATER REPELLENT WHICH COMPRISES CONTACTING THE SURFACES WITH AN AQUEOUS SOLUTION OF A SILOXANE SALT OF THE FORMULA
Claim 2
Independent Claim
24 words
A METHOD OF RENDERING CERAMIC SURFACES WATER REPELLENT WHICH COMPRISES CONTACTING THE SURFACES WITH AN AQUEOUS SOLUTION OF A SILOXANE SALT OF THE 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) | 1955-01-14 | 1955-07-16 | 1956-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-14 | 1959-07-16 | 1960-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-14 | 1963-07-16 | 1964-01-15 | $7700.00 | Window Closed / Lapsed |