US2077774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transfusion apparatus
Assignee: Individual
•
Filing: 1934-02-19
•
Granted: 1937-04-20
•
Expires: 1954-02-19
Abstract
No abstract record available.
Inventors
- 👤 Fred F Rudder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:37
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/02; A61M1/60; A61M1/63; A61M1/64; A61M1/67; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/85978; Y10T137/86099; Y10T137/86493; Y10T137/86501; Y10T137/86831
Claims Analysis
Total Claims: 0
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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) | 1940-04-19 | 1940-10-19 | 1941-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-04-19 | 1944-10-19 | 1945-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-04-19 | 1948-10-19 | 1949-04-20 | $7700.00 | Window Closed / Lapsed |