US2486667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial respirator
Assignee: Individual
•
Filing: 1945-07-06
•
Granted: 1949-11-01
•
Expires: 1965-07-06
Abstract
No abstract record available.
Inventors
- 👤 Albert R Meister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:24
CPC Classifications
A; A61; A61H; A61H31/00; A61H31/004; A61H31/006; A61H2031/003; A61H2201/00; A61H2201/16; A61H2201/1602; A61H2201/165
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US517194A
Cited
US1802140A
Cited
US1783171A
Cited
US1848212A
Cited
US2103956A
Cited
US2314981A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-31 | 1953-05-02 | 1953-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-31 | 1957-05-02 | 1957-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-31 | 1961-05-02 | 1961-11-01 | $7700.00 | Window Closed / Lapsed |