US3423445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pentahalophenylethylsilanes and siloxanes
Assignee: Dow Silicones Corp
•
Filing: 1965-05-21
•
Granted: 1969-01-21
•
Expires: 1985-05-21
Abstract
No abstract record available.
Inventors
- 👤 George W Holbrook
- 👤 Ogden R Pierce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:29
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/22; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; C07F7/12; C07F7/121; C07F7/122; C10; C10M; C10M3/00; C10M2227/00; C10M2227/04; C10M2229/00; C10M2229/04; C10M2229/05; C10M2229/051; C10M2229/052; C10M2229/053; C10N; C10N2040/00; C10N2040/02; C10N2050/00; C10N2050/015; C10N2050/02; C10N2050/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2911427A
Cited
US2911428A
Cited
US3122521A
Cited
US3109855A
Cited
US3270070A
Cited
US3269928A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-21 | 1972-07-22 | 1973-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-21 | 1976-07-22 | 1977-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-21 | 1980-07-22 | 1981-01-21 | $7700.00 | Window Closed / Lapsed |