Patent US2929844A successfully refreshed from Google Patents.
US2929844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-(2, 2-dialkoxyethyl)-n-[(substituted-phenyl)-alkyl]dihaloacetamides and their preparation
Assignee: STWB Inc
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Filing: 1957-07-03
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Granted: 1960-03-22
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Expires: 1977-07-03
Abstract
No abstract record available.
Inventors
- 👤 Alexander R Surrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:34
CPC Classifications
C; C07; C07D; C07D495/00; C07D495/02; C07D495/04; C07C; C07C233/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND HAVING THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-22 | 1963-09-21 | 1964-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-22 | 1967-09-21 | 1968-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-22 | 1971-09-21 | 1972-03-22 | $7700.00 | Window Closed / Lapsed |