US2383181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for inducing respiration
Assignee: REVAIR Corp
•
Filing: 1943-01-29
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Granted: 1945-08-21
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Expires: 1963-01-29
Abstract
No abstract record available.
Inventors
- 👤 Herbert E Enslin
- 👤 Edgren C Wallace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:32
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/0057; A61M16/0003; A61M16/0009; A61M16/10; A61M16/105; A61M16/106; A61M16/107; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/85978; Y10T137/86131; Y10T137/86139; Y10T137/86147
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) | 1948-08-20 | 1949-02-19 | 1949-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-08-20 | 1953-02-19 | 1953-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-08-20 | 1957-02-19 | 1957-08-21 | $7700.00 | Window Closed / Lapsed |