Patent US2447796A successfully refreshed from Google Patents.
Patent US4371193A successfully refreshed from Google Patents.
US3397221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organosiloxane containing carboranes and process therefor
Assignee: Olin Corp
•
Filing: 1965-06-21
•
Granted: 1968-08-13
•
Expires: 1985-06-21
Abstract
No abstract record available.
Inventors
- 👤 Papetti Stelvio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:37
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838
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) | 1971-08-13 | 1972-02-12 | 1972-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-13 | 1976-02-12 | 1976-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-13 | 1980-02-12 | 1980-08-13 | $7700.00 | Window Closed / Lapsed |