US2455083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cellulose ethers of 3, 4 epoxy 1-butene and their oxidation products
Assignee: Pacific Mills
•
Filing: 1945-05-08
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Granted: 1948-11-30
•
Expires: 1965-05-08
Abstract
No abstract record available.
Inventors
- 👤 David M Musser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:36
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/10; D06M13/11; C; C08; C08B; C08B11/00; C08B11/02; C08B11/04; C08B11/08; C08B11/187
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1502379A
Cited
US1941278A
Cited
GB415052A
Cited
US2120513A
Cited
US2131145A
Cited
US2164248A
Cited
US2131120A
Cited
GB467992A
Cited
US2238949A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-30 | 1952-05-31 | 1952-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-30 | 1956-05-31 | 1956-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-30 | 1960-05-31 | 1960-11-30 | $7700.00 | Window Closed / Lapsed |