US3463802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tetrakis perfluoro-alkyl orthosilicates
Assignee: Monsanto Research Corp
•
Filing: 1964-07-28
•
Granted: 1969-08-26
•
Expires: 1984-07-28
Abstract
No abstract record available.
Inventors
- 👤 Edward S Blake
- 👤 James A Webster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:52
CPC Classifications
C; C10; C10M; C10M3/00; C07; C07F; C07F7/00; C07F7/02; C07F7/04; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2227/00; C10M2227/02; C10N; C10N2040/00; C10N2040/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2698836A
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US3085104A
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US2727054A
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US3114760A
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US2993925A
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US3033788A
Cited
US3223642A
Cited
US3246030A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-25 | 1973-02-24 | 1973-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-25 | 1977-02-24 | 1977-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-25 | 1981-02-24 | 1981-08-26 | $7700.00 | Window Closed / Lapsed |