US2938047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbobenzophenoneoxyalkyl siloxanes and their preparation
Assignee: Union Carbide Corp
•
Filing: 1958-11-13
•
Granted: 1960-05-24
•
Expires: 1978-11-13
Abstract
No abstract record available.
Inventors
- 👤 William T Black
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:07
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/38; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
AN ORGANOSILOXANE CONTAINING AT LEAST ONE SILICON ATOM HAVING ONE CARBOBENZOPHENONNEYALKYL GROUP ATTTACHED TO SILICON THROUGH A SILICON-CARBON LINKAGE, SAID CARBOBENZOPHENONEOXY GROUP HAVING THE FORMULA:
Claim 2
Dependent Claim
25 words
AN ORGANOSILOXANE CONTAINING AT LEAST ONE SILICON ATOM HAVING ONE CARBOBENZOPHENONNEYALKYL GROUP ATTTACHED TO SILICON THROUGH A SILICON-CARBON LINKAGE, SAID CARBOBENZOPHENONEOXY GROUP HAVING THE FORMULA:
References Cited (Backward Citations)
US2723987A
Cited
FR1153312A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-24 | 1963-11-23 | 1964-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-24 | 1967-11-23 | 1968-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-24 | 1971-11-23 | 1972-05-24 | $7700.00 | Window Closed / Lapsed |