US3147233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyvinyl compound and treatment involving same
Assignee: YARNEY INTERNAT CORP
•
Filing: 1960-04-18
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Granted: 1964-09-01
•
Expires: 1980-04-18
Abstract
No abstract record available.
Inventors
- 👤 Mendelsohn Meyer
- 👤 Horowitz Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:52
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/44; C08K; C08K5/00; C08K5/16; C08K5/17; C08K5/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
A NEW COMPOSITION OF MATTER COMPRISING A POLYVINYLALCOHOL MONOESTER OF A POLYCARBOXYLIC ACID, SAID ESTER HAVING UNESTERIFIED CARBOXYL GROUPS, AND A QUATERNARY AMINE SELECTED FROM THE GROUP CONSISTING OF QUATERNARY AMINES HAVING THE GENERAL FORMULAE:
Claim 2
Dependent Claim
35 words
A NEW COMPOSITION OF MATTER COMPRISING A POLYVINYLALCOHOL MONOESTER OF A POLYCARBOXYLIC ACID, SAID ESTER HAVING UNESTERIFIED CARBOXYL GROUPS, AND A QUATERNARY AMINE SELECTED FROM THE GROUP CONSISTING OF QUATERNARY AMINES HAVING THE GENERAL FORMULAE:
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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |