Patent US4841967A successfully refreshed from Google Patents.
Patent US3838104A successfully refreshed from Google Patents.
US3838104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel oil-and water-repellent composition of polymers of fluoroalkyl monomers and diacetone acrylamide or diacetone methacrylamide
Assignee: AGC Inc
•
Filing: 1972-09-21
•
Granted: 1974-09-24
•
Expires: 1992-09-21
Abstract
Abstract AN OIL- AND WATER-REPELLENT COMPOSITION WHICH COMPROSES AN OIL- AND WATER-REPELLENT COPOLYMER PREPARED BY COPOLYMERIZING AT LEAST 25 WEIGHT PERCENT OF A FLUOROALKYL MONOMER AND 0.2-20 WEIGHT PERCENT OF DIACETONEACRYLAMIDE, DIACETONEMETHACRYLAMIDE OR ALKYLOL DERIVATIVES OF DIACETONEACRYLAMIDE OR DIACETONEMETHACRYLAMIDE.
Inventors
- 👤 T Hayashi
- 👤 H Kojima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:49
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/277; C; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/22; C08F220/24; C08F236/00; C08F236/02; C08F236/04; C08F236/14; C08F236/16; Y; Y10; Y10S; Y10S526/00; Y10S526/911
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |