US2713591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
boc boctanaib
Assignee: —
•
Filing: —
•
Granted: 1955-07-19
•
Expires: 1972-07-19
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:09
CPC Classifications
C; C07; C07C; C07C265/00; C07C265/14; C07C263/00; C07C263/04; C07C265/02; C07C265/04; C07C265/10; C07C2601/00; C07C2601/12; C07C2601/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A PROCESS FOR THE PREPARATION OF AN ORGANIC ISOCYANATE HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
13 words
A PROCESS FOR THE PREPARATION OF AN ORGANIC ISOCYANATE HAVING THE GENERAL FORMULA
References Cited (Backward Citations)
US2409712A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-18 | 1959-01-17 | 1959-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-18 | 1963-01-17 | 1963-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-18 | 1967-01-17 | 1967-07-19 | $7700.00 | Window Closed / Lapsed |