US2199386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Granular article containing cellulose ethers and shellac
Assignee: Dow Chemical Co
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Filing: 1939-03-23
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Granted: 1940-05-07
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Expires: 1959-03-23
Abstract
No abstract record available.
Inventors
- 👤 Shailer L Bass
- 👤 Earle L Kropscott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:03
CPC Classifications
C; C09; C09D; C09D101/00; C09D101/08; C09D101/26; C09D101/28; C08; C08L; C08L1/00; C08L1/08; C08L1/26; C08L1/28
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) | 1943-05-07 | 1943-11-06 | 1944-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-05-07 | 1947-11-06 | 1948-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-05-07 | 1951-11-06 | 1952-05-07 | $7700.00 | Window Closed / Lapsed |