Patent US3415632A successfully refreshed from Google Patents.
US3415632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel oil compositions
Assignee: Shell USA Inc
•
Filing: 1966-05-31
•
Granted: 1968-12-10
•
Expires: 1986-05-31
Abstract
No abstract record available.
Inventors
- 👤 Rechberger Alois
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:17
CPC Classifications
C; C10; C10L; C10L10/00; C10L10/02; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/188; C10L1/1886; C10L1/189; C10L1/22; C10L1/23; C10L1/231; C10L1/24; C10L1/2431; C10L1/2437; F; F02; F02B; F02B3/00; F02B3/06
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) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |