US2634302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isopropenylbiphenyl
Assignee: Monsanto Chemicals Ltd
•
Filing: 1949-12-06
•
Granted: 1953-04-07
•
Expires: 1969-12-06
Abstract
No abstract record available.
Inventors
- 👤 Raymond B Seymour
- 👤 David T Mowry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:55
CPC Classifications
C; C07; C07C; C07C15/00; C07C15/40; C07C15/50; C07C29/00; C07C29/48; C07C29/50; C07C29/54; C07C2601/00; C07C2601/12; C07C2601/14; Y; Y10; Y10S; Y10S585/00; Y10S585/929; Y10S585/93
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
AN ISOPROPENYLBIPHENYL SELECTED FROM THE CLASS CONSISTING OF PARA-ISOPROPENYLBIPHENYL AND META-ISOPROPENYLBIPHENYL.
Claim 2
Dependent Claim
11 words
AN ISOPROPENYLBIPHENYL SELECTED FROM THE CLASS CONSISTING OF PARA-ISOPROPENYLBIPHENYL AND META-ISOPROPENYLBIPHENYL.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |