Patent US2075369A successfully refreshed from Google Patents.
Patent US3029269A successfully refreshed from Google Patents.
US3029269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silicon esters
Assignee: California Research LLC
•
Filing: 1956-08-21
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Granted: 1962-04-10
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Expires: 1976-08-21
Abstract
No abstract record available.
Inventors
- 👤 Andrew D Abbott
- 👤 Robert O Bolt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:07
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
SILICON ESTERS OF THE GROUP CONSISTING OF 1,4-BIS(TRI(2-BUTOXY) SILOXY)BUTANE, 2,4BIS(TRI(2-BUTOXY)SILOXY)PENTANE, 1,6-BIS(TRI(2-BUTOXY)SILOXY)HEXANE, 1,4-BIS(TRI(2-BUTOXY)SILOXY)BENZENE, AND 1,3-BIS(TRI(2-PROPOXY)SILOXY)BENZENE.
Claim 2
Dependent Claim
14 words
SILICON ESTERS OF THE GROUP CONSISTING OF 1,4-BIS(TRI(2-BUTOXY) SILOXY)BUTANE, 2,4BIS(TRI(2-BUTOXY)SILOXY)PENTANE, 1,6-BIS(TRI(2-BUTOXY)SILOXY)HEXANE, 1,4-BIS(TRI(2-BUTOXY)SILOXY)BENZENE, AND 1,3-BIS(TRI(2-PROPOXY)SILOXY)BENZENE.
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) | 1965-04-09 | 1965-10-09 | 1966-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-09 | 1969-10-09 | 1970-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-09 | 1973-10-09 | 1974-04-10 | $7700.00 | Window Closed / Lapsed |