US2732398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
cafiicfzsojk
Assignee: —
•
Filing: —
•
Granted: 1956-01-24
•
Expires: 1973-01-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:06
CPC Classifications
C; C07; C07C; C07C309/00; C07C309/01; C07C309/25; B; B64; B64C; B64C11/00; B64C11/30; B64C11/38; B64C11/42; C07C309/02; C07C309/03; C07C309/06; C11; C11D; C11D1/00; C11D1/004; C25; C25B; C25B3/00; C25B3/01; C25B3/07; C25B3/09; C25B3/11; C25B3/20; C25B3/27; C25B3/28; C07C2601/00; C07C2601/12; C07C2601/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
20 words
THE NEW AND USEFUL FLUOROCARBON COMPOUNDS OF THE CLASS CONSISTING OF THE SATURATED FLUOROCARBON SULFONIC ACIDS REPRESENTED BY THE FORMULA:
Claim 2
Dependent Claim
20 words
THE NEW AND USEFUL FLUOROCARBON COMPOUNDS OF THE CLASS CONSISTING OF THE SATURATED FLUOROCARBON SULFONIC ACIDS REPRESENTED BY THE FORMULA:
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) | 1959-01-23 | 1959-07-25 | 1960-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-23 | 1963-07-25 | 1964-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-23 | 1967-07-25 | 1968-01-24 | $7700.00 | Window Closed / Lapsed |