US2527210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hemoglobin solution and method
Assignee: Individual
•
Filing: 1944-01-25
•
Granted: 1950-10-24
•
Expires: 1964-01-25
Abstract
No abstract record available.
Inventors
- 👤 John O Bower
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:07
CPC Classifications
C; C07; C07K; C07K14/00; C07K14/795; C07K14/805
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
THE METHOD OF PREPARING AN HEMOGLOBIN SOLUTION COMPRISING BLOOD CELL STRUCTURE, WHICH METHOD CONSISTS OF FREEZING THE BLOOD CELLS TO A TEMPERATURE AND AT A RATE OF FREEZING CORRESPONDING TO THAT RESULTING FROM THE IMMERSION OF A 30 CC. TEST TUBE CONTAINING BLOOD CELLS IN A FREEZING SOLUTION AT APPROXIMATELY -85*F. FOR FROM TWO TO THREE MINUTES.
Claim 2
Independent Claim
57 words
THE METHOD OF PREPARING AN HEMOGLOBIN SOLUTION COMPRISING BLOOD CELL STRUCTURE, WHICH METHOD CONSISTS OF FREEZING THE BLOOD CELLS TO A TEMPERATURE AND AT A RATE OF FREEZING CORRESPONDING TO THAT RESULTING FROM THE IMMERSION OF A 30 CC. TEST TUBE CONTAINING BLOOD CELLS IN A FREEZING SOLUTION AT APPROXIMATELY -85*F. FOR FROM TWO TO THREE MINUTES.
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) | 1953-10-23 | 1954-04-24 | 1954-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-23 | 1958-04-24 | 1958-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-23 | 1962-04-24 | 1962-10-24 | $7700.00 | Window Closed / Lapsed |