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US2535998A
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Hypodermic pressure manometer
Assignee: Individual
•
Filing: 1949-11-15
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Granted: 1950-12-26
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Expires: 1969-11-15
Abstract
No abstract record available.
Inventors
- 👤 Howard R Bierman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:43
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/02; A61B5/021; A61B5/0215
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE227199C
Cited
US2002008A
Cited
US2096831A
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US2400467A
Cited
US2376156A
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US2472045A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-25 | 1954-06-26 | 1954-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-25 | 1958-06-26 | 1958-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-25 | 1962-06-26 | 1962-12-26 | $7700.00 | Window Closed / Lapsed |