US3350344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organosilicon compositions
Assignee: General Electric Co
•
Filing: 1963-09-18
•
Granted: 1967-10-31
•
Expires: 1983-09-18
Abstract
No abstract record available.
Inventors
- 👤 Melvin D Beers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:01
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/48; C08G77/56; C08K; C08K3/00; C08K3/01; C08K3/013; Y; Y10; Y10S; Y10S273/00; Y10S273/29
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A METHOD WHICH COMPRISES (1) HEATING TO A TEMPERATURE BETWEEN 40*C. TO 250*C. IN THE PRESENCE OF AN EFECTIVE AMOUNT OF A LEWIS ACID CATALYST, A MIXTURE COMPRISING BY WEIGHT (A) 100 PARTS OF AN ORGANOSILOXANE OF THE FORMULA (R)ASIO(4-A)/2
Claim 2
Independent Claim
40 words
A METHOD WHICH COMPRISES (1) HEATING TO A TEMPERATURE BETWEEN 40*C. TO 250*C. IN THE PRESENCE OF AN EFECTIVE AMOUNT OF A LEWIS ACID CATALYST, A MIXTURE COMPRISING BY WEIGHT (A) 100 PARTS OF AN ORGANOSILOXANE OF THE FORMULA (R)ASIO(4-A)/2
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) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |