US3157649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Examine
Assignee: —
•
Filing: —
•
Granted: 1964-11-17
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Expires: 1981-11-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:50
CPC Classifications
C; C07; C07D; C07D251/00; C07D251/02; C07D251/12; C07D251/26; C07D251/30; C07D251/36; A; A01; A01N; A01N59/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
THE PROCESS FOR MAKING POTASSIUM DICHLOROISOCYANURATE PARTICLES WHICH DO NOT APPRECIABLY COALESCE OR LUMP DURING STORAGE WHICH COMPRISES INTIMATELY ADMIXING SOLID PARTICLES OF POTASSIUM DICHLOROISOCYANURATE CONTAINING LESS THAN 0.3% BY WEIGHT OF MOISTURE, AT A TEMPERATURE OF ABOUT 100* C. TO ABOUT 150* C. WITH FROM ABOUT 2% TO ABOUT 10% BY WEIGHT, BASED ON THE WEIGHT OF SAID POTASSIUM DICHLOROISOCYANURATE, OF SOLID PARTICLES OF A PARTIALLY TO COMPLETELY ANHYDROUS HYDRATABLE, WATER SOLUBLE, NON-DELIQUESCENT, CRYSTALLINE, INORGANIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL PHOSPHATES, SILICATES, CARBONATES AND SULFATES AND HAVING A RATE OF HYDRATION GREATER THAN 160 MILLIGRAMS PERCENT PER HOUR AT A TEMPERATURE OF 25* C. AND A RELATIVE HUMIDITY OF 100% UNTIL A DRY, STABLE, FREE FLOWING POTASSIUM DICHLOROISOCYANURATE PRODUCT IS FORMED, SAID PRODUCT BEING CHARACTERIZED IN HAVING AN AVAILABLE CHLORINE CONTENT OF FROM ABOUT 53.1% TO ABOUT 59.4%.
Claim 2
Dependent Claim
143 words
THE PROCESS FOR MAKING POTASSIUM DICHLOROISOCYANURATE PARTICLES WHICH DO NOT APPRECIABLY COALESCE OR LUMP DURING STORAGE WHICH COMPRISES INTIMATELY ADMIXING SOLID PARTICLES OF POTASSIUM DICHLOROISOCYANURATE CONTAINING LESS THAN 0.3% BY WEIGHT OF MOISTURE, AT A TEMPERATURE OF ABOUT 100* C. TO ABOUT 150* C. WITH FROM ABOUT 2% TO ABOUT 10% BY WEIGHT, BASED ON THE WEIGHT OF SAID POTASSIUM DICHLOROISOCYANURATE, OF SOLID PARTICLES OF A PARTIALLY TO COMPLETELY ANHYDROUS HYDRATABLE, WATER SOLUBLE, NON-DELIQUESCENT, CRYSTALLINE, INORGANIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL PHOSPHATES, SILICATES, CARBONATES AND SULFATES AND HAVING A RATE OF HYDRATION GREATER THAN 160 MILLIGRAMS PERCENT PER HOUR AT A TEMPERATURE OF 25* C. AND A RELATIVE HUMIDITY OF 100% UNTIL A DRY, STABLE, FREE FLOWING POTASSIUM DICHLOROISOCYANURATE PRODUCT IS FORMED, SAID PRODUCT BEING CHARACTERIZED IN HAVING AN AVAILABLE CHLORINE CONTENT OF FROM ABOUT 53.1% TO ABOUT 59.4%.
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) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |