US3419595A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorocarbon fluoroalkanesulfonates
Assignee: 3M Co
•
Filing: 1965-03-05
•
Granted: 1968-12-31
•
Expires: 1985-03-05
Abstract
No abstract record available.
Inventors
- 👤 Robert L Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:46
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/22; C07D295/28; C07D295/30; C07C; C07C303/00; C07C303/26; C07C303/28; C07C309/00; C07C309/63; C07C309/64; C07C309/65; C07C309/72; C07C309/73; C07C323/00; C07C323/01; C07C323/02; C07C323/03; C07C331/00; C07C331/02; C07C331/04; C07C45/00; C07C45/51; C07C45/516; C07C45/56; C07C45/562; C07C45/61; C07C45/67; C07C45/68; C07C45/70; C07C45/71; C07C47/00; C07C47/02; C07C47/14; C07C49/00; C07C49/385; C07C49/457; C07C49/463; C07C49/587; C07C49/687; C07C49/697; C07D307/00; C07D307/02; C07D307/04; C07D307/18; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4006; C07F9/4018; C07F9/547; C07F9/655; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2732398A
Cited
US3346612A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |