US3210170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of gases from hydrocarbon oil and removal of carbon particles therefrom
Assignee: Shell USA Inc
•
Filing: 1961-06-26
•
Granted: 1965-10-05
•
Expires: 1981-06-26
Abstract
No abstract record available.
Inventors
- 👤 Peter Van T Spijker
- 👤 Kolijn Martinus
- 👤 Roest Pieter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:38
CPC Classifications
B; B01; B01D; B01D12/00; C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/487; C09C1/56; C09C1/58; C09C3/00; C09C3/003; C01; C01P; C01P2006/00; C01P2006/12; C02; C02F; C02F1/00; C02F1/001; C02F2103/00; C02F2103/18
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |