US2531355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Para-vinylbenzyl compounds
Assignee: Monsanto Chemicals Ltd
•
Filing: 1946-06-22
•
Granted: 1950-11-21
•
Expires: 1966-06-22
Abstract
No abstract record available.
Inventors
- 👤 William S Emerson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:49
CPC Classifications
C; C08; C08F; C08F10/00; C07; C07C; C07C67/00; C07C67/04; C07C69/00; C07C69/02; C07C69/12; C07C69/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
THE COMPOUND HAVING THE FORMULA:
Claim 2
Dependent Claim
5 words
THE COMPOUND HAVING THE FORMULA:
References Cited (Backward Citations)
US2383922A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-20 | 1954-05-22 | 1954-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-20 | 1958-05-22 | 1958-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-20 | 1962-05-22 | 1962-11-21 | $7700.00 | Window Closed / Lapsed |