US2562445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transfusion equipment
Assignee: Bayer Corp
•
Filing: 1947-02-21
•
Granted: 1951-07-31
•
Expires: 1967-02-21
Abstract
No abstract record available.
Inventors
- 👤 William F Butler
- 👤 Fred A Cutter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:27
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/14; A61M5/165; A61M5/162
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US170124A
Cited
US360094A
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US785125A
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US796910A
Cited
US1097876A
Cited
US1704634A
Cited
US2212318A
Cited
US2354623A
Cited
US2341114A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-30 | 1955-01-29 | 1955-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-30 | 1959-01-29 | 1959-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-30 | 1963-01-29 | 1963-07-31 | $7700.00 | Window Closed / Lapsed |