US2613208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tertiary aminomethylbenzenes
Assignee: Rohm and Haas Co
•
Filing: 1949-06-29
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Granted: 1952-10-07
•
Expires: 1969-06-29
Abstract
No abstract record available.
Inventors
- 👤 John O Van Hook
- 👤 Willard J Croxall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:20
CPC Classifications
C; C11; C11B; C11B3/00; C11B3/02; C11B3/06; B; B01; B01J; B01J31/00; B01J31/16; B01J31/18; B01J31/1895; B01J31/20; B01J31/24; B01J31/2404; C07; C07D; C07D295/00; C07D295/02; C07D295/027; C07D295/03; C10; C10M; C10M1/00; C10M1/08; B01J2231/00; B01J2231/30; B01J2231/32; B01J2231/324; B01J2231/328; B01J2531/00; B01J2531/80; B01J2531/84; B01J2531/847; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/30; C10M2219/00; C10M2219/10; C10N; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUNDS OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUNDS OF THE FORMULA
References Cited (Backward Citations)
US2273141A
Cited
US2220834A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-07 | 1956-04-07 | 1956-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-07 | 1960-04-07 | 1960-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-07 | 1964-04-07 | 1964-10-07 | $7700.00 | Window Closed / Lapsed |