US3450662A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anionic lactam catalyst system
Assignee: Monsanto Co
•
Filing: 1966-11-18
•
Granted: 1969-06-17
•
Expires: 1986-11-18
Abstract
No abstract record available.
Inventors
- 👤 Paul A Tierney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:45
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/02; B01J31/0215; B01J31/0228; B01J31/0234; B01J31/0235; B01J31/0252; C; C08; C08G; C08G69/00; C08G69/02; C08G69/08; C08G69/14; C08G69/16; C08G69/18; C08G69/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
CA676302A
Cited
US2806829A
Cited
US3017392A
Cited
US3017391A
Cited
US3018273A
Cited
US3342783A
Cited
US3359227A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-16 | 1972-12-16 | 1973-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-16 | 1976-12-16 | 1977-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-16 | 1980-12-16 | 1981-06-17 | $7700.00 | Window Closed / Lapsed |