Patent US2432242A successfully refreshed from Google Patents.
US2432242A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Calendered sheet comprising the reaction product of a polyvinyl acetal and an alcohol-modified ureaformaldehyde resin and method of making same
Assignee: EIDP Inc
•
Filing: 1943-02-20
•
Granted: 1947-12-09
•
Expires: 1963-02-20
Abstract
No abstract record available.
Inventors
- 👤 Robert M Leekley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:06
CPC Classifications
C; C08; C08L; C08L29/00; C08L29/14
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1242592A
Cited
US1721742A
Cited
US1963253A
Cited
US1890424A
Cited
US1989246A
Cited
US1890425A
Cited
US2195254A
Cited
US2277480A
Cited
US2280829A
Cited
US2268121A
Cited
US2301959A
Cited
US2317131A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-08 | 1951-06-09 | 1951-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-08 | 1955-06-09 | 1955-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-08 | 1959-06-09 | 1959-12-09 | $7700.00 | Window Closed / Lapsed |