US2553314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of rendering materials water repellent
Assignee: General Electric Co
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Filing: 1944-07-01
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Granted: 1951-05-15
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Expires: 1964-07-01
Abstract
No abstract record available.
Inventors
- 👤 Charles P Haber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:55
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C03; C03C; C03C17/00; C03C17/28; C03C17/30; C04B41/45; C04B41/46; C04B41/49; C04B41/4905; C04B41/4922; C04B41/4944; C04B41/495; C04B41/4983; C04B41/80; C04B41/81; C04B41/82; C04B41/84; C08; C08G; C08G77/00; C08G77/60; C08G77/62; D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; D06M15/6436; D21; D21H; D21H17/00; D21H17/03; D21H17/05; D21H17/07; D21H19/00; D21H19/10; D21H19/14; D21H19/24; D21H19/32; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31609; Y10T428/31612
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
86 words
THE PROCESS OF TRETING GLASS TO MAKE IT NONWETTABLE BY WATER WHICH COMPRISES CONTACTING THE SURFACE THEREOF WITH A LIQUID COMPOSITION COMPRISING A COMPLEX MIXTURE CONSISTING ESSENTIALLY OF CYCLIC AND LINEAR METHYL POLYSILAZINES AND OBTAINED BY EFFECTING REACTION BETWEEN (A) A MIXTURE OF METHYL CHLOROSILANES CONSISTING ESSENTIALLY OF DIMETHYLDICHLROSILANE AND METHYLTRICHLOROSILANE WHEREIN THE METHYLTRICHLOROSILANE IS PRESENT TO THE EXTENT OF A FEW PER CENT, AND (B) LIQUID ANHYDROUS AMMONIA WHICH IS PRESNT IN AN AMOUNT SUFFICIENT TO GIVE A METHYL POLYSILIAZINE SUBSTANTIALLY FREE OF SILICON-BONDED CHLORINE.
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) | 1954-05-14 | 1954-11-13 | 1955-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-14 | 1958-11-13 | 1959-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-14 | 1962-11-13 | 1963-05-15 | $7700.00 | Window Closed / Lapsed |