Patent US2086656A successfully refreshed from Google Patents.
Patent US2834819A successfully refreshed from Google Patents.
US2834819A
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Production of low molecular weight polymer with sulfonic acid-containing polymer as catalyst
Assignee: Beazer East Inc
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Filing: 1952-04-11
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Granted: 1958-05-13
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Expires: 1972-04-11
Abstract
No abstract record available.
Inventors
- 👤 Alelio Gaetano F D
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:42
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/26; C07C2/28; C08; C08F; C08F4/00; C07C2531/00; C07C2531/02; C07C2531/06; C07C2531/08; C07C2531/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
A PROCESS FOR THE PRODUCTION OF POLYMERIC COMPOSITIONS COMPRISING PREDOMINANTLY DIMERS, TRIMERS AND TETRAMERS COMPRISING THE POLYMERIZATION OF A POLYMERIZABLE MASS COMPRISING AT LEAST ONE POLYMERIZABLE ETHYLENIC MONOMER IN THE PRESENCE OF A FUSIBLE, AQUEOUSALKALI-SOLUTION POLYMER HAVING SULFONIC ACID GROUPS THEREIN AS A CATALYST.
Claim 2
Dependent Claim
44 words
A PROCESS FOR THE PRODUCTION OF POLYMERIC COMPOSITIONS COMPRISING PREDOMINANTLY DIMERS, TRIMERS AND TETRAMERS COMPRISING THE POLYMERIZATION OF A POLYMERIZABLE MASS COMPRISING AT LEAST ONE POLYMERIZABLE ETHYLENIC MONOMER IN THE PRESENCE OF A FUSIBLE, AQUEOUSALKALI-SOLUTION POLYMER HAVING SULFONIC ACID GROUPS THEREIN AS A CATALYST.
References Cited (Backward Citations)
US2533210A
Cited
US2590834A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |