Patent US3375227A successfully refreshed from Google Patents.
US3375227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carboxy-hydroxy-containing copolymers
Assignee: Celanese Coatings Co
•
Filing: 1966-04-21
•
Granted: 1968-03-26
•
Expires: 1986-04-21
Abstract
No abstract record available.
Inventors
- 👤 Darrell D Hicks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:36
CPC Classifications
C; C08; C08F; C08F22/00; C08F20/00; C08F20/62; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C09D133/062; C09D133/066; C08L; C08L61/00; C08L75/00; C08L75/04
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) | 1971-03-26 | 1971-09-25 | 1972-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-26 | 1975-09-25 | 1976-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-26 | 1979-09-25 | 1980-03-26 | $7700.00 | Window Closed / Lapsed |