US1874667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pumping apparatus for medical treatments
Assignee: Individual
•
Filing: 1931-04-23
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Granted: 1932-08-30
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Expires: 1951-04-23
Abstract
No abstract record available.
Inventors
- 👤 Wada Yoshinobu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:47
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/08; F04B43/082; A; A61; A61M; A61M60/00; A61M60/10; A61M60/104; A61M60/109; A61M60/20; A61M60/247; A61M60/253; A61M60/268; A61M60/279; A61M60/284; A61M60/30; A61M60/39; A61M60/40; A61M60/424; A61M60/438; A61M5/00; A61M5/14; A61M5/142; A61M5/14212; A61M5/14228; A61M5/14232
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) | 1935-08-30 | 1936-02-29 | 1936-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-08-30 | 1940-02-29 | 1940-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-08-30 | 1944-02-29 | 1944-08-30 | $7700.00 | Window Closed / Lapsed |