US2667871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hypodermic injection apparatus
Assignee: Individual
•
Filing: 1951-11-20
•
Granted: 1954-02-02
•
Expires: 1971-11-20
Abstract
No abstract record available.
Inventors
- 👤 Jr George N Hein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:21
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/30; A61M5/24; A61M5/2422; A61M5/2425; A61M5/31; A61M5/315; A61M5/31525; A61M5/31533; A61M5/31545; A61M5/31548; A61M5/3155; A61M5/31551; A61M5/48; A61M5/482
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2380534A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-01 | 1957-08-03 | 1958-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-01 | 1961-08-03 | 1962-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-01 | 1965-08-03 | 1966-02-02 | $7700.00 | Window Closed / Lapsed |