Patent US3481834A successfully refreshed from Google Patents.
US3481834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for desulfurizing fuels
Assignee: Individual
•
Filing: 1968-08-21
•
Granted: 1969-12-02
•
Expires: 1988-08-21
Abstract
No abstract record available.
Inventors
- 👤 Arthur M Squires
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:12
CPC Classifications
C; C10; C10L; C10L9/00; C10L9/02; C10B; C10B53/00; C10B53/08; C10B55/00; C10B55/02; C10B55/04; C10B55/08; C10B55/10; C10G; C10G11/00; C10G11/14; C10G11/18
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3194644A
Cited
US2348543A
Cited
US2364390A
Cited
US2595365A
Cited
US2559631A
Cited
DE1020147B
Cited
US2970893A
Cited
US3164958A
Cited
GB944630A
Cited
US3228872A
Cited
US3325992A
Cited
CH661687A5
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |