US3541127A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Siloxane-polyoxyalkylene copolymers
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1968-12-16
•
Granted: 1970-11-17
•
Expires: 1988-12-16
Abstract
No abstract record available.
Inventors
- 👤 James Hughes Beattie
- 👤 Ronald Sangster Stuart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:50
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/48; C08G18/4829; C08G77/00; C08G77/04; C08G77/06; C08G77/42; C08G77/46; C08J; C08J9/00; C08J9/0061; C08G2110/00; C08G2110/0008; C08G2110/0083; C08J2375/00; C08J2375/04; C08J2483/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1973-11-16 | 1974-05-18 | 1974-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-16 | 1978-05-18 | 1978-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-16 | 1982-05-18 | 1982-11-17 | $7700.00 | Window Closed / Lapsed |