US2368949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Saponification products of polyvinyl esters
Assignee: EIDP Inc
•
Filing: 1943-01-07
•
Granted: 1945-02-06
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Expires: 1963-01-07
Abstract
No abstract record available.
Inventors
- 👤 Smith Joseph Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:24
CPC Classifications
C; C08; C08F; C08F6/00; C08F6/06; C08F261/00; C08F261/02; C08F261/04; C08F220/00; C08F220/02; C08F220/10; C08F220/12; C08F220/16; C08F220/18; C08F220/1804
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1948-02-06 | 1948-08-07 | 1949-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-02-06 | 1952-08-07 | 1953-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-02-06 | 1956-08-07 | 1957-02-06 | $7700.00 | Window Closed / Lapsed |