US2729622A
Expired / Lapsed
US
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Polycarboxyl- and polycarbalkoxyl-containing polymerizable quaternary ammonium monomes and their polymers
Assignee: EIDP Inc
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Filing: 1952-04-11
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Granted: 1956-01-03
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Expires: 1972-04-11
Abstract
No abstract record available.
Inventors
- 👤 Charles J Albisetti
- 👤 Arthur L Barney
- 👤 Theodore L Cairns
- 👤 Hilmer E Winberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:31
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/46; D06M13/463; C; C08; C08F; C08F16/00; C08F16/12; C08F16/14; C08F16/28
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
31 words
A COMPOUND, HAVING BUT ONE NON-AROMATIC CARBON TO CARBON UNSATURATION, FROM THE CLASS CONSISTING OF SALTS AND ESTERS, WITH ALKANOLS OF UP TO FOUR CARBONS, OF AN ACID OF 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) | 1959-01-02 | 1959-07-04 | 1960-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-02 | 1963-07-04 | 1964-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-02 | 1967-07-04 | 1968-01-03 | $7700.00 | Window Closed / Lapsed |