US3873685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contiguous shaped chlorine releasing structure
Assignee: Olin Corp
•
Filing: 1973-09-10
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Granted: 1975-03-25
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Expires: 1993-09-10
Abstract
Abstract Process for producing a contiguous, shaped-structure containing physically discrete components of sodium dichloroisocyanurate dihydrate and trichloroisocyanuric acid which comprises compressing discrete portions of these components together in a structure forming apparatus at a pressure of about 2,000 to about 25,000 p.s.i.
Inventors
- 👤 Jr William H Kibbel
- 👤 Roger C Hollenbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:56
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/49; A61K8/494; A61K8/4966; A61K8/02; A61K8/04; A61K8/046; A61Q; A61Q19/00; A61Q19/10; C; C02; C02F; C02F1/00; C02F1/50; A61K2800/00; A61K2800/20; A61K2800/22
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
24 words
A STRUCTURALLY-STRONG STORAGE-STABLE CONTIGUOUS, LAYEREDTABLE CONSISTING ESENTIALLY OF A LAYER OF RAPIDLY-SOLUBLE CHLORINE-RELEASING SODIUM DICHLOROISOCYANURATE DIHYDRATE AND ANOTHER LAYER OF SLOWLY-SOLUBLE CHLORINE-RELEASING TRICHLOROISOCYANURIC ACID.
Claim 2
Dependent Claim
24 words
A STRUCTURALLY-STRONG STORAGE-STABLE CONTIGUOUS, LAYEREDTABLE CONSISTING ESENTIALLY OF A LAYER OF RAPIDLY-SOLUBLE CHLORINE-RELEASING SODIUM DICHLOROISOCYANURATE DIHYDRATE AND ANOTHER LAYER OF SLOWLY-SOLUBLE CHLORINE-RELEASING TRICHLOROISOCYANURIC ACID.
Claim 3
Dependent Claim
26 words
A structurally-strong, storage-stable, contiguous, shaped-structure consisting essentially of an inner core of slowly-soluble chlorine-releasing trichloroisocyanuric acid and an outer layer of rapidly-soluble chlorine-releasing sodium dichloroisocyanurate dihydrate.
Claim 4
Dependent Claim
26 words
A structurally-strong, storage-stable, contiguous, shaped-structure consisting essentially of an inner core of slowly-soluble chlorine-releasing trichloroisocyanuric acid and an outer layer of rapidly-soluble chlorine-releasing sodium dichloroisocyanurate dihydrate.
References Cited (Backward Citations)
US701438A
Cited
US2913460A
Cited
US3120378A
Cited
US3035057A
Cited
US3342674A
Cited
US3429821A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-24 | 1978-09-23 | 1979-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-24 | 1982-09-23 | 1983-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-24 | 1986-09-23 | 1987-03-25 | $7700.00 | Window Closed / Lapsed |