US2540163A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blood pressure measuring device
Assignee: Wyeth Holdings LLC
•
Filing: 1946-11-22
•
Granted: 1951-02-06
•
Expires: 1966-11-22
Abstract
No abstract record available.
Inventors
- 👤 Jr William G Brosene
- 👤 Harold J Kersten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:19
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/02; A61B5/021; A61B5/022; A61B5/0225; A61B5/02255; A61B5/024; A61B5/02416; Y; Y10; Y10S; Y10S73/00; Y10S73/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1667409A
Cited
US1866581A
Cited
US2088198A
Cited
US2299109A
Cited
US2414747A
Cited
US2493301A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-05 | 1954-08-07 | 1955-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-05 | 1958-08-07 | 1959-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-05 | 1962-08-07 | 1963-02-06 | $7700.00 | Window Closed / Lapsed |