US3088970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidation of polyethers
Assignee: Union Carbide Corp
•
Filing: 1961-03-06
•
Granted: 1963-05-07
•
Expires: 1981-03-06
Abstract
No abstract record available.
Inventors
- 👤 Howard R Guest
- 👤 Ben W Kiff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:58
CPC Classifications
C; C07; C07C; C07C67/00; C07C67/39
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
A PROCESS FOR PREPARING ESTERS WHICH COMPRISES HEATING A GLYCOL ETHER CORRESPONDING TO THE FORMULA:
Claim 2
Dependent Claim
15 words
A PROCESS FOR PREPARING ESTERS WHICH COMPRISES HEATING A GLYCOL ETHER CORRESPONDING TO THE FORMULA:
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) | 1966-05-06 | 1966-11-05 | 1967-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-06 | 1970-11-05 | 1971-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-06 | 1974-11-05 | 1975-05-07 | $7700.00 | Window Closed / Lapsed |