US2617830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyglycol ethers of 7-ethyl-2-methyl-undecanol-4
Assignee: Monsanto Chemicals Ltd
•
Filing: 1950-06-30
•
Granted: 1952-11-11
•
Expires: 1970-06-30
Abstract
No abstract record available.
Inventors
- 👤 Kosmin Milton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:38
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/66; C11D1/72
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
4 words
COMPOUND HAVING THE FORMULA:
Claim 2
Dependent Claim
4 words
COMPOUND HAVING THE FORMULA:
References Cited (Backward Citations)
US1696874A
Cited
US2355823A
Cited
US2527970A
Cited
US1970578A
Cited
US2316842A
Cited
US2226119A
Cited
US2491533A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-11 | 1956-05-12 | 1956-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-11 | 1960-05-12 | 1960-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-11 | 1964-05-12 | 1964-11-11 | $7700.00 | Window Closed / Lapsed |