Patent US2138605A successfully refreshed from Google Patents.
US2138605A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blood transfusion syringe
Assignee: LANDIS TRANSFUSION EQUIPMENT C
•
Filing: 1936-11-16
•
Granted: 1938-11-29
•
Expires: 1956-11-16
Abstract
No abstract record available.
Inventors
- 👤 Richard P Landis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:25
CPC Classifications
F; F04; F04B; F04B53/00; F04B53/10; F04B53/102; F04B53/1035; A; A61; A61M; A61M1/00; A61M1/60; A61M1/63; F16; F16K; F16K15/00; F16K15/14; F16K15/1401; F16K15/144; F16K15/147; A61M1/02; A61M1/64; A61M1/67; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7879; Y10T137/788; Y10T137/7882
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1941-11-28 | 1942-05-30 | 1942-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-11-28 | 1946-05-30 | 1946-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-11-28 | 1950-05-30 | 1950-11-29 | $7700.00 | Window Closed / Lapsed |