US3275598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of oxirane monoepoxides in the presence of an organometallic compoundand an alcohol
Assignee: Union Carbide Corp
•
Filing: 1959-07-01
•
Granted: 1966-09-27
•
Expires: 1979-07-01
Abstract
No abstract record available.
Inventors
- 👤 Kenneth T Garty
- 👤 Jr Thomas B Gibb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:54
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/04; C08G65/06; C08G65/08; C08G65/10; C08G65/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
METHOD FOR THE PRODUCTION OF A POLYMER OF AN EPOXIDE COMPOUND WHICH COMPRISES CONTACTING A MONOMERIC OXIRANE MONOEPOXIDE, WHICH IS FREE OF ESTER, ACID AMINO AND ALDEHYDE GROUPS, WITH AT LEAST ABOUT 0.01 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF SAID OXIRANE MONOEPOXIDE, OF AN ORGANOMETALLIC COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
51 words
METHOD FOR THE PRODUCTION OF A POLYMER OF AN EPOXIDE COMPOUND WHICH COMPRISES CONTACTING A MONOMERIC OXIRANE MONOEPOXIDE, WHICH IS FREE OF ESTER, ACID AMINO AND ALDEHYDE GROUPS, WITH AT LEAST ABOUT 0.01 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF SAID OXIRANE MONOEPOXIDE, OF AN ORGANOMETALLIC COMPOUND HAVING THE 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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |