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Patent US2669564A successfully refreshed from Google Patents.
US2669564A
Expired / Lapsed
US
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Tertiary-aminoalkyl 4-amino-2-alkoxy-thiolbenzoates and their preparation
Assignee: STWB Inc
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Filing: 1951-03-17
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Granted: 1954-02-16
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Expires: 1971-03-17
Abstract
No abstract record available.
Inventors
- 👤 Raymond O Clinton
- 👤 Stanley C Laskowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:46
CPC Classifications
C; C07; C07D; C07D211/00; C07D211/04; C07D211/06; C07D211/08
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
6 words
A TERTIARY-AMINOALKYL 4-AMINO-2-ALKOXYTHIOLBENZOATE HAVING THE FORMULA
Claim 2
Dependent Claim
6 words
A TERTIARY-AMINOALKYL 4-AMINO-2-ALKOXYTHIOLBENZOATE HAVING THE FORMULA
Claim 3
Dependent Claim
21 words
A COMPOUND ACCORDING TO CLAIM 1 WHERE R AND R1 ARE EACH LOWER ALKYL RADICALS HAVING ONE TO SIX CARBON ATOMS.
References Cited (Backward Citations)
US2342142A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-15 | 1957-08-17 | 1958-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-15 | 1961-08-17 | 1962-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-15 | 1965-08-17 | 1966-02-16 | $7700.00 | Window Closed / Lapsed |