US3537981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for stabilizing pyrolysis gasoline
Assignee: Universal Oil Products Co
•
Filing: 1969-05-07
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Granted: 1970-11-03
•
Expires: 1989-05-07
Abstract
No abstract record available.
Inventors
- 👤 Robin J Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:33
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/32; C10G45/34; C10G45/40; C10G2400/00; C10G2400/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3004914A
Cited
US3470085A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-02 | 1974-05-04 | 1974-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-02 | 1978-05-04 | 1978-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-02 | 1982-05-04 | 1982-11-03 | $7700.00 | Window Closed / Lapsed |