US3539648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst polymerization reaction
Assignee: Mobil Oil AS
•
Filing: 1967-06-22
•
Granted: 1970-11-10
•
Expires: 1987-06-22
Abstract
No abstract record available.
Inventors
- 👤 Bernard A Orkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:06
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/48; B; B01; B01J; B01J21/00; B01J21/12; B01J29/00; B01J29/04; B01J29/06; B01J29/08; C08G65/00; C08G65/02; C08G65/26; C08G65/2642; C08G65/2645; C08G65/2654; C08G65/2657
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2527970A
Cited
US2327053A
Cited
US2807651A
Cited
US3042666A
Cited
US3075928A
Cited
US3321412A
Cited
US3370056A
Cited
US3328467A
Cited
US3341456A
Cited
US3393243A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-09 | 1974-05-11 | 1974-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-09 | 1978-05-11 | 1978-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-09 | 1982-05-11 | 1982-11-10 | $7700.00 | Window Closed / Lapsed |