US2824113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quaternary ammonium phosphites
Assignee: Atlas Powder Co
•
Filing: 1953-04-06
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Granted: 1958-02-18
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Expires: 1973-04-06
Abstract
No abstract record available.
Inventors
- 👤 John D Zech
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:51
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/141; C07F9/142
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A QUATERNARY AMMONIUM ALKYL HYDROGEN PHOSPHITE WHEREIN THE SAID ALKYL IS LOWER ALKYL, WHEREIN ONE OF THE RADICALS ATTACHED TO THE QUATERNARY NITROGEN ATOM IS A MONOVALENT LIPOPHILLIC ORGANIC RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKYL RADICALS CONTAINING FROM 10 TO 20 CARBON ATOMS, FATTY-ACYL RADICALS CONTAINING FROM 11 TO 21 CARBON ATOMS IN THE ACYL RESIDUE AND FROM 1 TO 10 OXY-ALKYLENE GROUPS OF 2 TO 3 CARBON ATOMS EACH, AND SUBSTITUTED BENZYL RADICALS CONFORMING TO THE FORMULA
Claim 2
Dependent Claim
80 words
A QUATERNARY AMMONIUM ALKYL HYDROGEN PHOSPHITE WHEREIN THE SAID ALKYL IS LOWER ALKYL, WHEREIN ONE OF THE RADICALS ATTACHED TO THE QUATERNARY NITROGEN ATOM IS A MONOVALENT LIPOPHILLIC ORGANIC RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKYL RADICALS CONTAINING FROM 10 TO 20 CARBON ATOMS, FATTY-ACYL RADICALS CONTAINING FROM 11 TO 21 CARBON ATOMS IN THE ACYL RESIDUE AND FROM 1 TO 10 OXY-ALKYLENE GROUPS OF 2 TO 3 CARBON ATOMS EACH, AND SUBSTITUTED BENZYL RADICALS CONFORMING TO THE FORMULA
References Cited (Backward Citations)
US2574955A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-17 | 1961-08-19 | 1962-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-17 | 1965-08-19 | 1966-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-17 | 1969-08-19 | 1970-02-18 | $7700.00 | Window Closed / Lapsed |