US2764602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quaternary ammonium alkylperfluoroamides
Assignee: 3M Co
•
Filing: 1954-04-21
•
Granted: 1956-09-25
•
Expires: 1974-04-21
Abstract
No abstract record available.
Inventors
- 👤 Arthur H Ahlbrecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:06
CPC Classifications
C; C09; C09K; C09K23/00; C09K23/18; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/07
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
14 words
THE NEW AND USEFUL PERFLUOROALKYL - AMIDIPOLYMETHYLENE QUATERNARY AMMONIUM COMPOUNDS REPESENTED BY THE FORMULA:
Claim 2
Dependent Claim
14 words
THE NEW AND USEFUL PERFLUOROALKYL - AMIDIPOLYMETHYLENE QUATERNARY AMMONIUM COMPOUNDS REPESENTED BY THE FORMULA:
Claim 3
Dependent Claim
7 words
TRIMETHYL(GAMMA PERFLUOROCAPRYLAMIDO)PROPYLENE AMMONIUM IODIDE, HAVING THE FORMULA:
Claim 4
Dependent Claim
7 words
TRIMETHYL(GAMMA PERFLUOROCAPRYLAMIDO)PROPYLENE AMMONIUM IODIDE, HAVING 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) | 1959-09-25 | 1960-03-26 | 1960-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-25 | 1964-03-26 | 1964-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-25 | 1968-03-26 | 1968-09-25 | $7700.00 | Window Closed / Lapsed |