Patent US2737946A successfully refreshed from Google Patents.
US2737946A
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US
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Hypodermic injection apparatus
Assignee: Individual
•
Filing: 1949-09-01
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Granted: 1956-03-13
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Expires: 1969-09-01
Abstract
No abstract record available.
Inventors
- 👤 Jr George N Hein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:57
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/30; A61M5/24; A61M5/2422; A61M5/2425
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US798093A
Cited
FR505931A
Cited
US2221739A
Cited
US2322244A
Cited
US2380534A
Cited
US2322245A
Cited
US2398544A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-13 | 1959-09-12 | 1960-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-13 | 1963-09-12 | 1964-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-13 | 1967-09-12 | 1968-03-13 | $7700.00 | Window Closed / Lapsed |