Patent US2614561A successfully refreshed from Google Patents.
US2614561A
Expired / Lapsed
US
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Absorber for anesthetic gas machines
Assignee: E & J Manufacturing Co
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Filing: 1950-03-15
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Granted: 1952-10-21
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Expires: 1970-03-15
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 08:02
CPC Classifications
A; A62; A62B; A62B19/00; A61; A61M; A61M16/00; A61M16/10; A61M16/104
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2507607A
Cited
US2450338A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-21 | 1956-04-21 | 1956-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-21 | 1960-04-21 | 1960-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-21 | 1964-04-21 | 1964-10-21 | $7700.00 | Window Closed / Lapsed |