US2807635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silicon amines
Assignee: Shell Development Co
•
Filing: 1954-03-25
•
Granted: 1957-09-24
•
Expires: 1974-03-25
Abstract
No abstract record available.
Inventors
- 👤 Breederveld Heyme
- 👤 Waterman Hein Israel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:32
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/025
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
7 words
AMINO SILICON COMPOUNDS OF THE GENERAL FORMULA
Claim 2
Dependent Claim
7 words
AMINO SILICON COMPOUNDS OF THE GENERAL FORMULA
Claim 3
Dependent Claim
54 words
THESE PROCESS FOR THE PRODUCTION OF AMINO SILICON COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF TETRA (TERTALKYLAMINO) SILANE AND TERT-ALKYLAMINOHALOSILANES WHEREIN THE ATOMS LINKED TO SILICON ARE AMINO NITROGEN AND HALOGEN ATOMS ONLY, WHICH COMPRISES REACTING A SILICON TETRAHALIDE WITH TERT-ALKYLAMINE AT A TEMPERATURE IN THE RNAGE OF FROM ABOUT 20*C. TO ABOUT 350*C.
Claim 4
Dependent Claim
54 words
THESE PROCESS FOR THE PRODUCTION OF AMINO SILICON COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF TETRA (TERTALKYLAMINO) SILANE AND TERT-ALKYLAMINOHALOSILANES WHEREIN THE ATOMS LINKED TO SILICON ARE AMINO NITROGEN AND HALOGEN ATOMS ONLY, WHICH COMPRISES REACTING A SILICON TETRAHALIDE WITH TERT-ALKYLAMINE AT A TEMPERATURE IN THE RNAGE OF FROM ABOUT 20*C. TO ABOUT 350*C.
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) | 1960-09-23 | 1961-03-25 | 1961-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-23 | 1965-03-25 | 1965-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-23 | 1969-03-25 | 1969-09-24 | $7700.00 | Window Closed / Lapsed |