US3288770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water soluble quaternary ammonium polymers
Assignee: Peninsular Chem Res Inc
•
Filing: 1962-12-14
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Granted: 1966-11-29
•
Expires: 1982-12-14
Abstract
No abstract record available.
Inventors
- 👤 George B Butler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:14
CPC Classifications
C; C08; C08F; C08F30/00; C08F30/02; C02; C02F; C02F1/00; C02F1/52; C02F1/54; C08F26/00; C08F26/02; C08F26/04; C08F28/00; C08F36/00; C08F36/02; C08F36/20; Y; Y10; Y10S; Y10S526/00; Y10S526/923
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
LINEAR HIGHER MOLECULAR WEIGHT WATER-SOLUBLE QUATERNARY AMMONIUM CHLORIDE POLYMERS HAVING A HOMOPOLYMERIC MOLECULAR CHAIN OF REPEATING UNITS OF A FORMULA SELECTED FROM THE GROUP CONSISTING OF:
Claim 2
Dependent Claim
26 words
LINEAR HIGHER MOLECULAR WEIGHT WATER-SOLUBLE QUATERNARY AMMONIUM CHLORIDE POLYMERS HAVING A HOMOPOLYMERIC MOLECULAR CHAIN OF REPEATING UNITS OF A FORMULA SELECTED FROM THE GROUP CONSISTING OF:
References Cited (Backward Citations)
US2926161A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |