Patent US2833802A successfully refreshed from Google Patents.
US2833802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of organosilicon compounds
Assignee: Dow Silicones Corp
•
Filing: 1956-02-27
•
Granted: 1958-05-06
•
Expires: 1976-02-27
Abstract
No abstract record available.
Inventors
- 👤 Robert L Merker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:15
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; C07F7/0872; C07F7/0889; C08; C08G; C08G77/00; C08G77/04; C08G77/38; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A PROCESS WHICH COMPRISES REACTING A TERTIARY AMINE SALT OF AN ACIDIC ORGANIC COMPOUND, SAID ACIDIC COMPOUND HAVING A DISSOCIATION CONSTANT OF GREATER THAN 1 X 10**-7 AND THE ORGANIC RADICALS ATTACHED DIRECTLY TO NITROGEN IN SAID AMINE SALT BEING ALKYL RADICALS OF FROM 1 TO 4 INCLUSIVE CARBON ATOMS, WITH AN ORGANOSILICON COMPOUND CONTAINING AT LEAST ONE MONOHALOGENATED ALKYL RADICAL ATTACHED TO AT LEAST ONE SILICON ATOM PER MOLECULE, SAID ORGANOSILICON COMPOUND BEING FREE OF ANY OTHER SUBSTITUENTS REACTIVE TOWARD OTHER CONSTITUENTS OF THE REACTION MASS.
Claim 2
Dependent Claim
87 words
A PROCESS WHICH COMPRISES REACTING A TERTIARY AMINE SALT OF AN ACIDIC ORGANIC COMPOUND, SAID ACIDIC COMPOUND HAVING A DISSOCIATION CONSTANT OF GREATER THAN 1 X 10**-7 AND THE ORGANIC RADICALS ATTACHED DIRECTLY TO NITROGEN IN SAID AMINE SALT BEING ALKYL RADICALS OF FROM 1 TO 4 INCLUSIVE CARBON ATOMS, WITH AN ORGANOSILICON COMPOUND CONTAINING AT LEAST ONE MONOHALOGENATED ALKYL RADICAL ATTACHED TO AT LEAST ONE SILICON ATOM PER MOLECULE, SAID ORGANOSILICON COMPOUND BEING FREE OF ANY OTHER SUBSTITUENTS REACTIVE TOWARD OTHER CONSTITUENTS OF THE REACTION MASS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |