Patent US915982A successfully refreshed from Google Patents.
Patent US2734880A successfully refreshed from Google Patents.
US2734880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymer of vinyl aromatic hydrocar-
Assignee: —
•
Filing: —
•
Granted: 1956-02-14
•
Expires: 1973-02-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:31
CPC Classifications
C; C09; C09D; C09D151/00; C09D151/08; C08; C08F; C08F283/00; C08F283/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
THE PROCESS WHICH COMPRISES INTERPOLYMERISING A MONOMERIC AROMATIC MONO VINYL HYDROCARBON WITH A MIXTURE OF ALKYD RESIN COMPRISING THE ACID RADICAL OF DEHYDRATED CASTOR OIL AND ALKYD RESIN COMPRISING THE ACID RADICAL OF AN UNSATURATED FATTY ACID WITH ISOLATED DOUBLE BONDS, IN THE PRESENCE OF AN INERT SOLVENT.
Claim 2
Dependent Claim
48 words
THE PROCESS WHICH COMPRISES INTERPOLYMERISING A MONOMERIC AROMATIC MONO VINYL HYDROCARBON WITH A MIXTURE OF ALKYD RESIN COMPRISING THE ACID RADICAL OF DEHYDRATED CASTOR OIL AND ALKYD RESIN COMPRISING THE ACID RADICAL OF AN UNSATURATED FATTY ACID WITH ISOLATED DOUBLE BONDS, IN THE PRESENCE OF AN INERT SOLVENT.
References Cited (Backward Citations)
US2482086A
Cited
BE500743A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-13 | 1959-08-15 | 1960-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-13 | 1963-08-15 | 1964-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-13 | 1967-08-15 | 1968-02-14 | $7700.00 | Window Closed / Lapsed |