US2623832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerizing silicon acylates
Assignee: Ellis Foster Co
•
Filing: 1946-09-20
•
Granted: 1952-12-30
•
Expires: 1966-09-20
Abstract
No abstract record available.
Inventors
- 👤 Charles A Mackenzie
- 👤 Schoffman Milton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:23
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
THE METHOD OF CONDENSING SILICON ACYLATES WHICH COMPRISES HEATING IN LIQUID CONDITION A SILICON ACYLATE HAVING 2 SATURATED FATTY ACID ACYL RADICALS ATTACHED TO SILICON AND AHAVING ONE HYDROGEN ATTACHED TO SILICON, THE REMAINING RADICAL ATTACHED TO SILICON BEING SELECTED FROM THE GROUP CONSISTING OF ALKYL, ALKYLENE AND ARYL RADICALS, WITH A SILICONE FORMING AGENT SELECTED FROM THE GROUP CONSISTING OF WATER, ANHYDROUS ALCOHOL, ANHYDROUS AMMONIA, AND A SILICON TETRAHALIDE.
Claim 2
Independent Claim
70 words
THE METHOD OF CONDENSING SILICON ACYLATES WHICH COMPRISES HEATING IN LIQUID CONDITION A SILICON ACYLATE HAVING 2 SATURATED FATTY ACID ACYL RADICALS ATTACHED TO SILICON AND AHAVING ONE HYDROGEN ATTACHED TO SILICON, THE REMAINING RADICAL ATTACHED TO SILICON BEING SELECTED FROM THE GROUP CONSISTING OF ALKYL, ALKYLENE AND ARYL RADICALS, WITH A SILICONE FORMING AGENT SELECTED FROM THE GROUP CONSISTING OF WATER, ANHYDROUS ALCOHOL, ANHYDROUS AMMONIA, AND A SILICON TETRAHALIDE.
References Cited (Backward Citations)
US2389802A
Cited
US2386259A
Cited
US2412470A
Cited
US2386441A
Cited
US2397287A
Cited
US2390370A
Cited
US2405988A
Cited
US2441422A
Cited
US2441423A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-30 | 1956-06-30 | 1956-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-30 | 1960-06-30 | 1960-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-30 | 1964-06-30 | 1964-12-30 | $7700.00 | Window Closed / Lapsed |