US3021375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of 2, 4-bis-(chloromethyl)-toluene
Assignee: Monsanto Canada Inc
•
Filing: 1959-01-09
•
Granted: 1962-02-13
•
Expires: 1979-01-09
Abstract
No abstract record available.
Inventors
- 👤 Waid Ted Henry
- 👤 Coleman Denis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:09
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/26; C07C17/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
A PROCESS FOR THE PRODUCTION IN MAJOR AMOUNTS OF A MEMBER OF THE GROUP CONSISTING OF 2,4-BIS-(CHLOROMETHYL)-TOLUENE AND 2,5-BIS-(CHLOROMETHYL)-P-XYLENE BY CHLOROMETHYLATION OF AN AROMATIC HYDROCABON HAVING THE FORMULA
Claim 2
Dependent Claim
28 words
A PROCESS FOR THE PRODUCTION IN MAJOR AMOUNTS OF A MEMBER OF THE GROUP CONSISTING OF 2,4-BIS-(CHLOROMETHYL)-TOLUENE AND 2,5-BIS-(CHLOROMETHYL)-P-XYLENE BY CHLOROMETHYLATION OF AN AROMATIC HYDROCABON HAVING THE FORMULA
References Cited (Backward Citations)
US1727682A
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US2219873A
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US2516971A
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US2714125A
Cited
US2850542A
Cited
US2868821A
Cited
US2964573A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-12 | 1965-08-14 | 1966-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-12 | 1969-08-14 | 1970-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-12 | 1973-08-14 | 1974-02-13 | $7700.00 | Window Closed / Lapsed |