US2968593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of anorganic bone
Assignee: Armour and Co
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Filing: 1957-12-09
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Granted: 1961-01-17
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Expires: 1977-12-09
Abstract
No abstract record available.
Inventors
- 👤 Rapkin Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:28
CPC Classifications
A; A61; A61L; A61L27/00; A61L27/36; A61L27/3604; A61L27/3608; A61K; A61K35/00; A61K35/12; A61K35/32; A61L27/3683
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
47 words
THE METHOD OF PREPARING ANOGANIC BONE COMPRISING THE STEPS OF BOILING BONE IN SUCCESSIVE CHANGES OF WATER, DRYING THE BONE, SUBSTANTIALLY DEFATTING THE BONE WITH A FAT EXTRACTING SOLVENT, AND REMOVING BY EXTRACTING WITH ETHYLENEDIAMINE THE ORGANIC MATRIX FROM THE DEFATTED BONE TO OBTAIN THE INORGANIC MATRIX.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-17 | 1964-07-18 | 1965-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-17 | 1968-07-18 | 1969-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-17 | 1972-07-18 | 1973-01-17 | $7700.00 | Window Closed / Lapsed |