US2809941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Producing phosphorus containing amino resins and flameproofing organic textiles
Assignee: Individual
•
Filing: 1953-09-03
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Granted: 1957-10-15
•
Expires: 1973-09-03
Abstract
No abstract record available.
Inventors
- 👤 Wilson A Reeves
- 👤 John D Guthrie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:03
CPC Classifications
C; C08; C08G; C08G79/00; C08G79/02; C08G79/06; D; D06; D06M; D06M13/00; D06M13/244; D06M13/282; D06M13/285; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423; D06M15/43; D06M15/431; D06M15/667; D06M15/673; Y; Y10; Y10S; Y10S8/00; Y10S8/21
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A PROCESS OF PRODUCING POLYMERS, WHICH COMPRISES, REACTING PHOSPHORUS COMPOUNDS, SELECTED FROM THE GROUP CONSISTING OF TETRAKIS(HYDROXYMETHYL) PHOSPHONIUM CHLORIDE, TRIS(HYDROXYMETHYL) PHOSPHINE OXIDE, AND MIXTURES THEREOF, WITH MONOMERIC COMPOUNDS CONTAINING AT LEAST TWO MEMBERS OF THE GROUP CONSISTING OF HYDROGEN ATOMS AND METHYLOL (-CH2OH) RADICALS ATTACHED TO TRIVALENT NITROGEN ATOMS BY HEATING AT A TEMPERATURE FROM ABOUT ROOM TEMPERATURE TO ABOUT 150*C. IN THE PRESENCE OF A SOLVENT.
Claim 2
Dependent Claim
67 words
A PROCESS OF PRODUCING POLYMERS, WHICH COMPRISES, REACTING PHOSPHORUS COMPOUNDS, SELECTED FROM THE GROUP CONSISTING OF TETRAKIS(HYDROXYMETHYL) PHOSPHONIUM CHLORIDE, TRIS(HYDROXYMETHYL) PHOSPHINE OXIDE, AND MIXTURES THEREOF, WITH MONOMERIC COMPOUNDS CONTAINING AT LEAST TWO MEMBERS OF THE GROUP CONSISTING OF HYDROGEN ATOMS AND METHYLOL (-CH2OH) RADICALS ATTACHED TO TRIVALENT NITROGEN ATOMS BY HEATING AT A TEMPERATURE FROM ABOUT ROOM TEMPERATURE TO ABOUT 150*C. IN THE PRESENCE OF A SOLVENT.
References Cited (Backward Citations)
US2606902A
Cited
US2668096A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-14 | 1961-04-15 | 1961-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-14 | 1965-04-15 | 1965-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-14 | 1969-04-15 | 1969-10-15 | $7700.00 | Window Closed / Lapsed |