US3383428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of cyclics and aromatics
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1966-02-23
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Granted: 1968-05-14
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Expires: 1986-02-23
Abstract
No abstract record available.
Inventors
- 👤 Jennings H Jones
- 👤 Merrell R Fenske
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:28
CPC Classifications
C; C07; C07C; C07C15/00; C07C1/00; C07C1/20; C07C1/207; C07C1/2072; C07C1/2074; C07C13/00; C07C2521/00; C07C2521/06; C07C2521/08; C07C2523/00; C07C2523/70; C07C2523/74; C07C2523/755; C07C2527/00; C07C2527/14; C07C2527/16; C07C2527/167; C07C2527/173
Claims Analysis
Total Claims: 0
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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) | 1971-05-14 | 1971-11-13 | 1972-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-14 | 1975-11-13 | 1976-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-14 | 1979-11-13 | 1980-05-14 | $7700.00 | Window Closed / Lapsed |