US3239483A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of polyisobutylene polymers with sulfur and benzotriazoles
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1960-08-08
•
Granted: 1966-03-08
•
Expires: 1980-08-08
Abstract
No abstract record available.
Inventors
- 👤 John J Higgins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:48
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3467; C08K5/3472; C08K5/3475
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2582510A
Cited
GB716338A
Cited
US2837528A
Cited
US3004896A
Cited
US3111502A
Cited
US3072585A
Cited
US3018269A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |