US2920092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gamma, gamma-diethoxypropyl- and beta-formylethyl-bis(trimethyl-siloxy) methylsilanes
Assignee: Union Carbide Corp
•
Filing: 1957-12-17
•
Granted: 1960-01-05
•
Expires: 1977-12-17
Abstract
No abstract record available.
Inventors
- 👤 Donald L Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:17
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
AN ORGANOFUNCTIONAL SILOXANE REPRESENTED BY THE FORMULA:
Claim 2
Dependent Claim
7 words
AN ORGANOFUNCTIONAL SILOXANE REPRESENTED BY THE FORMULA:
References Cited (Backward Citations)
US2588083A
Cited
US2803637A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-04 | 1963-07-06 | 1964-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-04 | 1967-07-06 | 1968-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-04 | 1971-07-06 | 1972-01-05 | $7700.00 | Window Closed / Lapsed |