US3449236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dewaxing aid composition
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1966-04-27
•
Granted: 1969-06-10
•
Expires: 1986-04-27
Abstract
No abstract record available.
Inventors
- 👤 John E Engelhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:26
CPC Classifications
C; C10; C10G; C10G73/00; C10G73/02; C10G73/04; C08; C08F; C08F236/00; C08F236/02; C08F236/04; C08F8/00; C08F8/14; C08F232/00; C08F232/02; C08F232/06; C08F2800/00; C08F2800/20; C08F2810/00; C08F2810/50
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2615845A
Cited
US3239445A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |