Patent US3444456A successfully refreshed from Google Patents.
US2835690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Base-catalyzed addition ot vinyl-silicon compositions
Assignee: General Electric Co
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Filing: 1953-12-31
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Granted: 1958-05-20
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Expires: 1973-12-31
Abstract
No abstract record available.
Inventors
- 👤 Prober Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:00
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/18; C07F7/1804
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
THE PROCESS OF ADDING AN ACTIVE HYDROGEN COMPOUND SELECTED FROM THE CLASS CONSISTING OF ALKANOLS, AMMONIA, MONOALKYL AMINES, DIALKYL AMINES, MONOARYL AMINES, DIARYL AMINES, ALKYL MERCAPTANS, PHENOL, ALKYL-SUBSTITUTED PHENOL, ALKYLOXIMES, DIALKYL OXIMES, DIALKYL ARSINES, AND DIALKYL PHOSPHINES TO VINYL-SUBSTITUTED ORGANOSILICON COMPOUNDS WHICH PROCESS COMPRISES EFFECTING REACTION BETWEEN SAID ACTIVE HYDROGEN COMPOUND AND A SILICONBONDED VINYL-SUBSTITUTED ORGANOSILICON COMPOUND IN THE PRESENCE OF A BASIC CATALYST SELECTED FROM THE CLASS CONSISTING OF ALCOHOLATES, MERCAPTIDES AND SODAMIDE.
Claim 2
Dependent Claim
74 words
THE PROCESS OF ADDING AN ACTIVE HYDROGEN COMPOUND SELECTED FROM THE CLASS CONSISTING OF ALKANOLS, AMMONIA, MONOALKYL AMINES, DIALKYL AMINES, MONOARYL AMINES, DIARYL AMINES, ALKYL MERCAPTANS, PHENOL, ALKYL-SUBSTITUTED PHENOL, ALKYLOXIMES, DIALKYL OXIMES, DIALKYL ARSINES, AND DIALKYL PHOSPHINES TO VINYL-SUBSTITUTED ORGANOSILICON COMPOUNDS WHICH PROCESS COMPRISES EFFECTING REACTION BETWEEN SAID ACTIVE HYDROGEN COMPOUND AND A SILICONBONDED VINYL-SUBSTITUTED ORGANOSILICON COMPOUND IN THE PRESENCE OF A BASIC CATALYST SELECTED FROM THE CLASS CONSISTING OF ALCOHOLATES, MERCAPTIDES AND SODAMIDE.
References Cited (Backward Citations)
US2479374A
Cited
FR1118495A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-19 | 1961-11-18 | 1962-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-19 | 1965-11-18 | 1966-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-19 | 1969-11-18 | 1970-05-20 | $7700.00 | Window Closed / Lapsed |