Patent US3404092A successfully refreshed from Google Patents.
US3404092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymers containing urethane groups as multifunctional v.i. improvers
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1966-03-21
•
Granted: 1968-10-01
•
Expires: 1986-03-21
Abstract
No abstract record available.
Inventors
- 👤 Jacobson Norman
- 👤 Takashima Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:22
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/234; C10L1/236; C08; C08F; C08F8/00; C08F8/30; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/62; C08G18/6204; C08G18/70; C08G18/71; C10M; C10M1/00; C10M1/08; C10M2217/00; C10M2217/02; C10M2217/04; C10N; C10N2040/00; C10N2040/14; C10N2040/16; C10N2040/17
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2837496A
Cited
US2781319A
Cited
US2901458A
Cited
US2987515A
Cited
US3067163A
Cited
US3088931A
Cited
US3096285A
Cited
US3316177A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-01 | 1972-04-01 | 1972-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-01 | 1976-04-01 | 1976-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-01 | 1980-04-01 | 1980-10-01 | $7700.00 | Window Closed / Lapsed |