Patent US1961489A successfully refreshed from Google Patents.
US1961489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient reflex syringe
Assignee: Individual
•
Filing: 1930-08-18
•
Granted: 1934-06-05
•
Expires: 1950-08-18
Abstract
No abstract record available.
Inventors
- 👤 George N Hein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:37
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/24; A61M5/2422; A61M5/2425; A61C; A61C5/00; A61C5/60; A61C5/62; A61M13/00; A61M2205/00; A61M2205/07; A61M2205/071; A61M2205/075; A61M2210/00; A61M2210/06; A61M2210/0618; A61M2210/0625; A61M3/00; A61M3/02; A61M3/0233; A61M3/0254; A61M3/0262
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) | 1937-06-04 | 1937-12-04 | 1938-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-06-04 | 1941-12-04 | 1942-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-06-04 | 1945-12-04 | 1946-06-05 | $7700.00 | Window Closed / Lapsed |