US3116265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of thermosetting hydrocarbon resins from polyaromatic hydrocarbon glycol
Assignee: Individual
•
Filing: 1961-11-01
•
Granted: 1963-12-31
•
Expires: 1981-11-01
Abstract
No abstract record available.
Inventors
- 👤 Huang Chingyun
- 👤 Imoto Minoru
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:34
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/34; C08L; C08L71/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A PROCES FOR THE PRODUCTION OF THERMOSETTING, AROMATIC HYDROCARBON RESINS, WHICH COMPRISES HARDENING A POLY-AROMATIC HYDROCARBON GLYCOL BY HEATING IN THE PRESENCE OF AN ORGANIC ACID CATALYST, WITH AT LEAST ONE AROMATIC HYDROCARBON COMPOUND SELECTED FROM THE GROUP CONSISTING OF MONO-, BI-, AND TRI-CYCLIC AROMATIC HYDROCARBONS, FORMALDEHYDE RESINS OF THE SAID HYDROCARBONS, AND COPOLYMERS OF THE SAID HYDROCARBONS WITH VINYL AROMATIC HYDROCARBON COMPOUNDS.
Claim 2
Dependent Claim
63 words
A PROCES FOR THE PRODUCTION OF THERMOSETTING, AROMATIC HYDROCARBON RESINS, WHICH COMPRISES HARDENING A POLY-AROMATIC HYDROCARBON GLYCOL BY HEATING IN THE PRESENCE OF AN ORGANIC ACID CATALYST, WITH AT LEAST ONE AROMATIC HYDROCARBON COMPOUND SELECTED FROM THE GROUP CONSISTING OF MONO-, BI-, AND TRI-CYCLIC AROMATIC HYDROCARBONS, FORMALDEHYDE RESINS OF THE SAID HYDROCARBONS, AND COPOLYMERS OF THE SAID HYDROCARBONS WITH VINYL AROMATIC HYDROCARBON COMPOUNDS.
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) | 1966-12-30 | 1967-07-01 | 1967-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-30 | 1971-07-01 | 1971-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-30 | 1975-07-01 | 1975-12-31 | $7700.00 | Window Closed / Lapsed |