US3772346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antiwetting method and compositions
Assignee: Chevron USA Inc
•
Filing: 1970-03-09
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Granted: 1973-11-13
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Expires: 1990-03-09
Abstract
Abstract NOVEL SILICO-FLUOROCARBON COMPOUNDS USEFUL FOR RENDERING SILICEOUS SURFACES RESISTANT TO WATER WETTING.
Inventors
- 👤 P Hess
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:15
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/28; C03C17/30; B; B82; B82Y; B82Y30/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-12 | 1977-05-14 | 1977-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-12 | 1981-05-14 | 1981-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-12 | 1985-05-14 | 1985-11-13 | $7700.00 | Window Closed / Lapsed |