US2987523A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of j-methyl-
Assignee: —
•
Filing: —
•
Granted: 1961-06-06
•
Expires: 1978-06-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:01
CPC Classifications
C; C07; C07D; C07D403/00; C07D403/02; C07D403/12; C07D231/00; C07D231/02; C07D231/10; C07D231/14; C07D231/38; C07D401/00; C07D401/02; C07D401/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
THE METHOD WHICH COMPRISES REACTING A COMPOUND OF THE FORMULA
Claim 2
Independent Claim
10 words
THE METHOD WHICH COMPRISES REACTING A COMPOUND OF THE FORMULA
References Cited (Backward Citations)
US2725384A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |