US2737176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Breathing machine
Assignee: E & J Manufacturing Co
•
Filing: 1951-03-31
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Granted: 1956-03-06
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Expires: 1971-03-31
Abstract
No abstract record available.
Inventors
- 👤 Le Roy G Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:27
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/0057; A61M16/0081; A61M16/0003; A61M16/0009; A61M16/0012
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-06 | 1959-09-05 | 1960-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-06 | 1963-09-05 | 1964-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-06 | 1967-09-05 | 1968-03-06 | $7700.00 | Window Closed / Lapsed |