US2048799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silicon esters of modified polyhydroxy alcohols
Assignee: EIDP Inc
•
Filing: 1931-10-22
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Granted: 1936-07-28
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Expires: 1951-10-22
Abstract
No abstract record available.
Inventors
- 👤 Walter E Lawson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:12
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/04; C07F7/07; C09; C09D; C09D4/00
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) | 1939-07-28 | 1940-01-27 | 1940-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-07-28 | 1944-01-27 | 1944-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-07-28 | 1948-01-27 | 1948-07-28 | $7700.00 | Window Closed / Lapsed |