US2849473A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ethylsiloxane bis (dimethyl siloxane) cyclic trimer
Assignee: Union Carbide Corp
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Filing: 1955-10-31
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Granted: 1958-08-26
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Expires: 1975-10-31
Abstract
No abstract record available.
Inventors
- 👤 Donald L Bailey
- 👤 William T Black
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:15
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/20; C07; C07F; C07F7/00; C07F7/02; C07F7/21
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A CHEMICAL COMPOUND IN THE FORM OF A CYCLOSILOXANE POLYMER CONSISTING OF ONE (CYCLOHEXEN-3-YL-L)-ETHYL SILOXANE UNIT AND TWO DIMETHYL SILOXANE UNITS.
Claim 2
Dependent Claim
21 words
A CHEMICAL COMPOUND IN THE FORM OF A CYCLOSILOXANE POLYMER CONSISTING OF ONE (CYCLOHEXEN-3-YL-L)-ETHYL SILOXANE UNIT AND TWO DIMETHYL SILOXANE UNITS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-25 | 1962-02-24 | 1962-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-25 | 1966-02-24 | 1966-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-25 | 1970-02-24 | 1970-08-26 | $7700.00 | Window Closed / Lapsed |