US2884462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of 2, 2-bis(oxyaryl)propane compounds
Assignee: Union Carbide Corp
•
Filing: 1956-02-28
•
Granted: 1959-04-28
•
Expires: 1976-02-28
Abstract
No abstract record available.
Inventors
- 👤 Joseph P Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:08
CPC Classifications
C; C07; C07C; C07C37/00; C07C37/11; C07C37/14; C07C41/00; C07C41/01; C07C41/18; C07C41/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
23 words
A PROCESS FOR PRODUCING A 2,2-BIS(OXYARY)PROPANE WHICH COMPRISES ADMIXING AND REACTING AN ACYCLIC C3H4 HYDROCARBON WITH AN OXYARYL COMPOUND HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
23 words
A PROCESS FOR PRODUCING A 2,2-BIS(OXYARY)PROPANE WHICH COMPRISES ADMIXING AND REACTING AN ACYCLIC C3H4 HYDROCARBON WITH AN OXYARYL COMPOUND HAVING THE GENERAL FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-27 | 1962-10-27 | 1963-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-27 | 1966-10-27 | 1967-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-27 | 1970-10-27 | 1971-04-28 | $7700.00 | Window Closed / Lapsed |