US1948388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic displacement syringe
Assignee: Individual
•
Filing: 1932-07-11
•
Granted: 1934-02-20
•
Expires: 1952-07-11
Abstract
No abstract record available.
Inventors
- 👤 Liberson Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:20
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61B; A61B17/00; A61B17/34; A61B17/3401; A61M2005/3128; A61M5/19; A61M5/315; A61M5/31511
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) | 1937-02-19 | 1937-08-21 | 1938-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-02-19 | 1941-08-21 | 1942-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-02-19 | 1945-08-21 | 1946-02-20 | $7700.00 | Window Closed / Lapsed |