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US2776991A
Expired / Lapsed
US
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Nu-aralkyl-nu-(2-carbamylalkyl)-halogenated-alkanamides and their preparation
Assignee: STWB Inc
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Filing: 1954-12-27
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Granted: 1957-01-08
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Expires: 1974-12-27
Abstract
No abstract record available.
Inventors
- 👤 Alexander R Surrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:30
CPC Classifications
C; C07; C07C; C07C237/00; C07C271/00; C07C271/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
5 words
A COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND HAVING THE FORMULA
Claim 3
Dependent Claim
11 words
A PROCESS FOR THE PREPARATION OF A COMPOUND HAVING THE FORMULA
Claim 4
Dependent Claim
11 words
A PROCESS FOR THE PREPARATION OF 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) | 1960-01-08 | 1960-07-09 | 1961-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-08 | 1964-07-09 | 1965-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-08 | 1968-07-09 | 1969-01-08 | $7700.00 | Window Closed / Lapsed |