US2744130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quaternary ammonium monomers and polymers thereof
Assignee: EIDP Inc
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Filing: 1952-04-11
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Granted: 1956-05-01
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Expires: 1972-04-11
Abstract
No abstract record available.
Inventors
- 👤 Winberg Hilmer Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:19
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; Y; Y10; Y10S; Y10S526/00; Y10S526/923
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A QUATERNARY AMMONIUM SALT OF AN ACID OF MOLECULAR WEIGHT UP TO 250 WHEREIN THE FOUR RADICALS ATTACHED IN THE CATION TO NITROGEN ARE (A) TWO ALKYL RADICALS OF ONE TO FOUR CARBON ATOMS, (B) A METHACRYLYLOXYALKYL RADICAL WHEREIN THE ALKALI IS OF TWO TO THREE CARBONS, (C) AN ALKYL RADICAL OF ONE TO THREE CARBONS HAVING A SUBSTITUENT OF THE CLASS CONSISTING OF THE CARBOXYL GROUP AND ESTERS THEREOF WITH ALKANOLS OF ONE TO FOUR CARBONS.
Claim 2
Dependent Claim
77 words
A QUATERNARY AMMONIUM SALT OF AN ACID OF MOLECULAR WEIGHT UP TO 250 WHEREIN THE FOUR RADICALS ATTACHED IN THE CATION TO NITROGEN ARE (A) TWO ALKYL RADICALS OF ONE TO FOUR CARBON ATOMS, (B) A METHACRYLYLOXYALKYL RADICAL WHEREIN THE ALKALI IS OF TWO TO THREE CARBONS, (C) AN ALKYL RADICAL OF ONE TO THREE CARBONS HAVING A SUBSTITUENT OF THE CLASS CONSISTING OF THE CARBOXYL GROUP AND ESTERS THEREOF WITH ALKANOLS OF ONE TO FOUR CARBONS.
References Cited (Backward Citations)
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-01 | 1959-10-31 | 1960-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-01 | 1963-10-31 | 1964-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-01 | 1967-10-31 | 1968-05-01 | $7700.00 | Window Closed / Lapsed |