US2629227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial breathing machine
Assignee: Individual
•
Filing: 1950-09-20
•
Granted: 1953-02-24
•
Expires: 1970-09-20
Abstract
No abstract record available.
Inventors
- 👤 Kenneth B Wolfe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:03
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/021; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18296
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US28758A
Cited
US1188565A
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US1998616A
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US2079952A
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US2063043A
Cited
US2292527A
Cited
US2398520A
Cited
US2309470A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-24 | 1956-08-25 | 1957-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-24 | 1960-08-25 | 1961-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-24 | 1964-08-25 | 1965-02-24 | $7700.00 | Window Closed / Lapsed |