Patent US3342862A successfully refreshed from Google Patents.
US3342862A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing dimethylacetamide
Assignee: Monsanto Co
•
Filing: 1964-08-14
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Granted: 1967-09-19
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Expires: 1984-08-14
Abstract
No abstract record available.
Inventors
- 👤 Jr William J Board
- 👤 Robert G Wooten
- 👤 Charles W Whatley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:44
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
8 words
A PROCESS OF MANUFACTURING DIMETHYLACYLAMIDE OF THE FORMULA:
Claim 2
Dependent Claim
8 words
A PROCESS OF MANUFACTURING DIMETHYLACYLAMIDE OF THE FORMULA:
References Cited (Backward Citations)
US2667511A
Cited
US3072725A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |