US3380943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing stable aqueous emulsions of compounds containing perfluoralkyl groups and emulsions produced
Assignee: Chemische Fabrik Pfersee GmbH
•
Filing: 1965-03-30
•
Granted: 1968-04-30
•
Expires: 1985-03-30
Abstract
No abstract record available.
Inventors
- 👤 Enders Heinz
- 👤 Deiner Hans
- 👤 Bernheim Willy
- 👤 Mosch Franz
- 👤 Stenzinger Theodor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:08
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/402; D06M13/438; C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/16; C07F9/165; C07F9/18; C09; C09K; C09K23/00; C09K23/16; D06M13/395; D06M13/398
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |