US3735002A
Expired / Lapsed
US
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Bone decalcification composition
Assignee: Individual
•
Filing: 1971-10-27
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Granted: 1973-05-22
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Expires: 1991-10-27
Abstract
Abstract A bone decalcification composition wherein an aqueous solution of about 2 grams of sodium oxalate or potassium oxalate is dissolved in about 100 cubic centimeters of formic acid, having a concentration of about 22 percent, which composition is capable of penetrating bone tissue and extracting calcium therefrom to render the bone soft enough to cut with a knife or the like into microscopic sections within a period of about 24 hours or less and without destroying cancer cells or elastic tissues with the bone.
Inventors
- 👤 M Poston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:48
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/28; G01N1/30
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
23 words
The composition set forth in claim 1, wherein the amount of oxalate present comprises about 2 percent by weight of the total solution.
Claim 2
Dependent Claim
24 words
The composition set forth in claim 1, wherein the concentration of the formic acid in the solution is about 24 percent by molecular weight.
Claim 3
Dependent Claim
41 words
The composition set forth in claim 1, wherein the amount of oxalate present comprises about 2 percent by weight of the total solution; and wherein the concentration of the formic acid in the solution is about 22 percent by molecular weight.
Claim 4
Dependent Claim
13 words
The composition set forth in claim 4, wherein said oxalate is sodium oxalate.
Claim 5
Dependent Claim
13 words
The composition set forth in claim 4, wherein said oxalate is potassium oxalate.
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) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |