US3446767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Terpolymer of vinyl acetate-vinyl tertiary acid esters and acrylate,maleate or fumarate ester
Assignee: Permutit Co Ltd
•
Filing: 1966-03-18
•
Granted: 1969-05-27
•
Expires: 1986-03-18
Abstract
No abstract record available.
Inventors
- 👤 John Devereaux Nolan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:50
CPC Classifications
C; C08; C08F; C08F218/00; C08F218/02; C08F218/04; C08F218/08; A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/41; A61K31/425; A61K31/429; A61K31/43; A61K33/00; A61K33/06; A61K33/12; A61K36/00; A61K36/18; A61K36/185; A61K36/81; A61K9/00; A61K9/14; A61K9/141; A61K9/143; A61K9/20; A61K9/2072; A61K9/2077; A61K9/2081; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31906
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) | 1972-05-26 | 1972-11-25 | 1973-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-26 | 1976-11-25 | 1977-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-26 | 1980-11-25 | 1981-05-27 | $7700.00 | Window Closed / Lapsed |