US3545428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Massflowmeter catheter
Assignee: Individual
•
Filing: 1968-10-10
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Granted: 1970-12-08
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Expires: 1988-10-10
Abstract
No abstract record available.
Inventors
- 👤 Wilton W Webster Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:27
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/68; A61B5/6846; A61B5/6847; A61B5/6852; A61B5/6855; A61B5/02; A61B5/026; A61B5/0275; A61B5/028; A61M; A61M25/00; A61M25/0067; A61M25/0068; A61M25/007; G; G01; G01F; G01F1/00; G01F1/68; A61M25/0021; A61M25/0023; A61M25/0026; A61M2025/0039
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) | 1973-12-07 | 1974-06-08 | 1974-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-07 | 1978-06-08 | 1978-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-07 | 1982-06-08 | 1982-12-08 | $7700.00 | Window Closed / Lapsed |