US2662888A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tertiary-aminoalkyl 4-amino-2-benzyloxy-benzoates and debenzylation thereof
Assignee: STWB Inc
•
Filing: 1951-08-17
•
Granted: 1953-12-15
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Expires: 1971-08-17
Abstract
No abstract record available.
Inventors
- 👤 Raymond O Clinton
- 👤 Stanley C Laskowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:28
CPC Classifications
C; C07; C07D; C07D211/00; C07D211/04; C07D211/06; C07D211/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A MEMBER OF THE GROUP CONSISTING OF BASIC ESTER HAVING THE FORMULA
Claim 2
Dependent Claim
12 words
A MEMBER OF THE GROUP CONSISTING OF BASIC ESTER HAVING THE FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-14 | 1957-06-15 | 1957-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-14 | 1961-06-15 | 1961-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-14 | 1965-06-15 | 1965-12-15 | $7700.00 | Window Closed / Lapsed |