US3451985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of polymerizing vinyl monomers
Assignee: Monsanto Co
•
Filing: 1964-03-26
•
Granted: 1969-06-24
•
Expires: 1984-03-26
Abstract
No abstract record available.
Inventors
- 👤 Edwin K Mahlo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:21
CPC Classifications
C; C08; C08F; C08F4/00; C08F4/28; C08F4/32; C08F4/38
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |