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US2980506A
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Nitrogen-phosphoric acid compounds containing active chlorine
Assignee: Henkel AG and Co KGaA
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Filing: 1957-09-16
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Granted: 1961-04-18
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Expires: 1977-09-16
Abstract
No abstract record available.
Inventors
- 👤 Habernickel Valentin
- 👤 Koster Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:51
CPC Classifications
C; C01; C01B; C01B21/00; C01B21/082; C01B21/097
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
PROCESS FOR THE PREPARATION OF A NITROGEN-PHOSPHORIC ACID COMPOUND CONTAINING AN ACTIVE CHLORINE CONNECTED DIRECTLY TO AN AMIDO GROUP WHICH COMPRISES CHLORINATING A NITROGEN-PHOSPHORIC ACID COMPOUND HAVING AT LEAST ONE AMIDO GROUP WHICH IS OBTAINED BY THE REACTION OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF PHOSPHORUS PENTOXIDE AND PHOSPHORIC ACID WITH A MEMBER SELECTED FROM THE GROUP CONSISTING OF AMMONIA, UREA, AMMONIA SALTS AND AMMONIUM CARBAMATE, WITH A MEMBER SELECTED FROM THE GROUP CONSISTING OF GASEOUS CHLORINE, HYPOCHLOROUS ACID, HYPOCHOLRITES AND N-CHLORO-SUCCINIMIDE.
Claim 2
Dependent Claim
84 words
PROCESS FOR THE PREPARATION OF A NITROGEN-PHOSPHORIC ACID COMPOUND CONTAINING AN ACTIVE CHLORINE CONNECTED DIRECTLY TO AN AMIDO GROUP WHICH COMPRISES CHLORINATING A NITROGEN-PHOSPHORIC ACID COMPOUND HAVING AT LEAST ONE AMIDO GROUP WHICH IS OBTAINED BY THE REACTION OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF PHOSPHORUS PENTOXIDE AND PHOSPHORIC ACID WITH A MEMBER SELECTED FROM THE GROUP CONSISTING OF AMMONIA, UREA, AMMONIA SALTS AND AMMONIUM CARBAMATE, WITH A MEMBER SELECTED FROM THE GROUP CONSISTING OF GASEOUS CHLORINE, HYPOCHLOROUS ACID, HYPOCHOLRITES AND N-CHLORO-SUCCINIMIDE.
References Cited (Backward Citations)
US1555474A
Cited
US1854291A
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US2350850A
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US2582181A
Cited
US2746855A
Cited
US2738265A
Cited
US2796321A
Cited
US2788286A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-17 | 1964-10-17 | 1965-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-17 | 1968-10-17 | 1969-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-17 | 1972-10-17 | 1973-04-18 | $7700.00 | Window Closed / Lapsed |