US3346604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quaternary ammonium complexes with heteropolyanions
Assignee: Wyeth Holdings LLC
•
Filing: 1962-06-11
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Granted: 1967-10-10
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Expires: 1982-06-11
Abstract
No abstract record available.
Inventors
- 👤 Jr George Leathwhite Roberts
- 👤 Fessler Robert Glenn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:56
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/08; C09D5/082; C09D5/086
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
AS A NEW COMPOSITION OF MATTER, AN INSOLUBLE ORGANIC QUATERNARY AMMONIUM COMPLEX WHEREIN THE ANION OF SAID COMPLETE IS DERIVED FROM A HETEROPOLYANIOMIC ACID; AND THE CATION IS DERVIED FROM A CATIONIC SURFACTNAT REPRESENTED BY THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
38 words
AS A NEW COMPOSITION OF MATTER, AN INSOLUBLE ORGANIC QUATERNARY AMMONIUM COMPLEX WHEREIN THE ANION OF SAID COMPLETE IS DERIVED FROM A HETEROPOLYANIOMIC ACID; AND THE CATION IS DERVIED FROM A CATIONIC SURFACTNAT REPRESENTED BY THE FOLLOWING FORMULA:
References Cited (Backward Citations)
US3123640A
Cited
US2592273A
Cited
US2759975A
Cited
US2816051A
Cited
US2860996A
Cited
US2882171A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |