US2582569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silicon-containing alcohols
Assignee: Dow Silicones Corp
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Filing: 1948-07-02
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Granted: 1952-01-15
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Expires: 1968-07-02
Abstract
No abstract record available.
Inventors
- 👤 Jr John Leopold Speier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:29
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0803; C07F7/081; C10; C10M; C10M2227/00; C10M2227/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
COMPOSITIONS OF THE GENERAL FORMULA RNSI(CH2OH)4-N IN WHICH R REPRESENTS HYDROCARBON RADICALS OF THE GROUP CONSISTING OF ALKYL AND MONOCYCLICARYL RADICALS AND N REPRESENTS AN INTEGER FROM 1 TO 3.
Claim 2
Dependent Claim
30 words
COMPOSITIONS OF THE GENERAL FORMULA RNSI(CH2OH)4-N IN WHICH R REPRESENTS HYDROCARBON RADICALS OF THE GROUP CONSISTING OF ALKYL AND MONOCYCLICARYL RADICALS AND N REPRESENTS AN INTEGER FROM 1 TO 3.
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) | 1955-01-14 | 1955-07-16 | 1956-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-14 | 1959-07-16 | 1960-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-14 | 1963-07-16 | 1964-01-15 | $7700.00 | Window Closed / Lapsed |