US2534149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of organo-substituted polysiloxanes
Assignee: General Electric Co
•
Filing: 1947-05-22
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Granted: 1950-12-12
•
Expires: 1967-05-22
Abstract
No abstract record available.
Inventors
- 👤 Robert O Sauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:12
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
THE PROCESS WHICH COMPRISES HEATING AT A TEMPERATURE ABOVE 125*C A MIXTURE OF INGREDIENTS COMPRISING (1) A COMPOUND CORRESPONDING TO THE GENERAL FORMULA RNSIX4-N WHERE R IS A MONOVALENT HYDROCARBON RADICAL SELECTED FROM THE CLASS CONSISTIN GOF ALKYL, ARYL, ARALKYL AND ALKARYL RADICALS, X IS A HALOGEN, AN N IS A WHOLE NUMBER EQUAL TO FROM 1 TO 3, AND (2) A COMPOUND SELECTED FROM THE CLASS CONSISTING OF
Claim 2
Dependent Claim
69 words
THE PROCESS WHICH COMPRISES HEATING AT A TEMPERATURE ABOVE 125*C A MIXTURE OF INGREDIENTS COMPRISING (1) A COMPOUND CORRESPONDING TO THE GENERAL FORMULA RNSIX4-N WHERE R IS A MONOVALENT HYDROCARBON RADICAL SELECTED FROM THE CLASS CONSISTIN GOF ALKYL, ARYL, ARALKYL AND ALKARYL RADICALS, X IS A HALOGEN, AN N IS A WHOLE NUMBER EQUAL TO FROM 1 TO 3, AND (2) A COMPOUND SELECTED FROM THE CLASS CONSISTING OF
References Cited (Backward Citations)
US2426121A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-11 | 1954-06-12 | 1954-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-11 | 1958-06-12 | 1958-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-11 | 1962-06-12 | 1962-12-12 | $7700.00 | Window Closed / Lapsed |