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Patent US514448A successfully refreshed from Google Patents.
US514448A
Expired / Lapsed
US
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Apparatus for producing artircial respiration
Assignee: —
•
Filing: —
•
Granted: 1894-02-13
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Expires: 1911-02-13
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:02
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/0057; A61M16/0072
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) | 1897-02-12 | 1897-08-14 | 1898-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1901-02-13 | 1901-08-15 | 1902-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1905-02-13 | 1905-08-15 | 1906-02-14 | $7700.00 | Window Closed / Lapsed |