Patent US2254449A successfully refreshed from Google Patents.
US2254449A
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US
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Injection syringe and protective sheath
Assignee: Individual
•
Filing: 1940-08-29
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Granted: 1941-09-02
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Expires: 1960-08-29
Abstract
No abstract record available.
Inventors
- 👤 Richard E Rasmussen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:58
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/315; A61M5/31533; A61M5/31545; A61M5/31548; A61M5/3155; A61M5/31551; A61M5/002; A61M5/31525; A61M5/31531; A61M5/31556; A61M5/31558; A61M5/31561; A61M5/31563; A61M5/31565; A61M5/31576; A61M5/31578; A61M5/3158; A61M5/3159; A61M5/31591
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) | 1944-09-01 | 1945-03-03 | 1945-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-09-01 | 1949-03-03 | 1949-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-09-01 | 1953-03-03 | 1953-09-02 | $7700.00 | Window Closed / Lapsed |