US3492220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrotreating pyrolysis gasoline
Assignee: Pullman Inc
•
Filing: 1962-06-27
•
Granted: 1970-01-27
•
Expires: 1982-06-27
Abstract
No abstract record available.
Inventors
- 👤 Frank L Lempert
- 👤 Ernest Solomon
- 👤 Eugene F Schwarzenbek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:20
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/32; C10G45/34; C10G45/36; C10G2400/00; C10G2400/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2638438A
Cited
US2901417A
Cited
US2889264A
Cited
US2925373A
Cited
US2913405A
Cited
US3133013A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |