Patent US2640028A successfully refreshed from Google Patents.
← Back to Patent Explorer
US2640028A Expired / Lapsed US ⏱️ 0.0 years remaining

Intercrystallized lithium hypochlorite-sodium sulfate composition

Assignee: Mathieson Chemical Corp
•
Filing: 1950-01-04
•
Granted: 1953-05-26
•
Expires: 1970-01-04
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Homer L Robson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 17:07
CPC Classifications
C; C01; C01B; C01B11/00; C01B11/04; C01B11/06; C01B11/062; C01B11/068

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 64 words
A COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF INTERCRYSTALLIZED SUBSTANTIALLY ANHYDROUS LITHIUM HYPOCHLORITE AND 10% TO 100% BY WEIGHT, BASED ON THE LITHIUM HYPOCHLORITE, OF SUBSTANTIALLY ANHYDROUS SODIUM SULFATE, CHARACTERIZED BY THE HIGH DENSITY AND THE FINELY GRAINED CRYSTAL STRUCTURE OF THE INTIMATELY INTERCRYSTALLIZED COMPONENTS WITH THE SODIUM SULFATE IN THE FORM OF THIN, INTER-TWINED LATHS EXHIBITING LOW BIREFRINGENCE AND NEGATIVE ELONGATION RELATIVE TO THENARDITE.

References Cited (Backward Citations)

US1678987A Cited
US1916770A Cited
GB581944A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1956-05-25 1956-11-24 1957-05-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1960-05-25 1960-11-24 1961-05-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1964-05-25 1964-11-24 1965-05-26 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag