US2582292A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of benzal-imino compounds
Assignee: White Laboratories Inc
•
Filing: 1949-02-03
•
Granted: 1952-01-15
•
Expires: 1969-02-03
Abstract
No abstract record available.
Inventors
- 👤 Clarence W Sondern
- 👤 Philip J Breivogel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:23
CPC Classifications
C; C07; C07C; C07C305/00; C07C305/02; C07C305/04; C07C305/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
IN A PROCESS FOR THE PREPARATION OF SUBSTITUTED AZOMETHINE COMPOUNDS, THE STEP WHICH INCLUDES: CONTACTING, AT A TEMPERATURE BETWEEN ABOUT ZERO AND ABOUT 100 DEGREES CENTIGRADE, A COMPOUND HAVING THE FORMULA:
Claim 2
Dependent Claim
31 words
IN A PROCESS FOR THE PREPARATION OF SUBSTITUTED AZOMETHINE COMPOUNDS, THE STEP WHICH INCLUDES: CONTACTING, AT A TEMPERATURE BETWEEN ABOUT ZERO AND ABOUT 100 DEGREES CENTIGRADE, 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) | 1955-01-14 | 1955-07-16 | 1956-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-14 | 1959-07-16 | 1960-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-14 | 1963-07-16 | 1964-01-15 | $7700.00 | Window Closed / Lapsed |