Patent US2511056A successfully refreshed from Google Patents.
US2511056A
Expired / Lapsed
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Organo siloxanes and their production
Assignee: Dow Silicones Corp
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Filing: 1948-04-20
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Granted: 1950-06-13
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Expires: 1968-04-20
Abstract
No abstract record available.
Inventors
- 👤 Jr John T Goodwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:00
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; C07F7/0872; C07F7/0874; B; B01; B01D; B01D19/00; B01D19/02; B01D19/04; B01D19/0404; B01D19/0409; C07F7/0876; C07F7/0878; C07F7/12; C07F7/18; C07F7/1804; C10; C10M; C10M171/00; C10M171/004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
COMPOSITIONS OF THE GENERAL FORMULA
Claim 2
Dependent Claim
5 words
COMPOSITIONS OF THE GENERAL FORMULA
References Cited (Backward Citations)
US2352974A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-12 | 1953-12-12 | 1954-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-12 | 1957-12-12 | 1958-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-12 | 1961-12-12 | 1962-06-13 | $7700.00 | Window Closed / Lapsed |