US2810713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quaternary ammonium compounds and methods of producing them
Assignee: Rohm and Haas Co
•
Filing: 1955-03-21
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Granted: 1957-10-22
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Expires: 1975-03-21
Abstract
No abstract record available.
Inventors
- 👤 Melamed Sidney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:21
CPC Classifications
C; C08; C08F; C08F8/00; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/17; Y10S260/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A COMPOSITION COMPRISING A LINEAR ADDITION COPOLYMER OF AT LEAST 30 TO 80 PERCENT OF UNITS OF FORMULA 1 AND BETWEEN 5 AND 20 MOLE PERCENT OF AT LEAST ONE UNIT SELECTED FROM THE GROUP CONSISTING OF THOSE OF FORMULA 111, THE FORMULAS BEING DEFINED AS FOLLOWS:
Claim 2
Dependent Claim
47 words
A COMPOSITION COMPRISING A LINEAR ADDITION COPOLYMER OF AT LEAST 30 TO 80 PERCENT OF UNITS OF FORMULA 1 AND BETWEEN 5 AND 20 MOLE PERCENT OF AT LEAST ONE UNIT SELECTED FROM THE GROUP CONSISTING OF THOSE OF FORMULA 111, THE FORMULAS BEING DEFINED AS FOLLOWS:
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) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |