US2695605A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure device for isolation chambers
Assignee: Children's Hospital of Philadelphia
•
Filing: 1949-12-12
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Granted: 1954-11-30
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Expires: 1969-12-12
Abstract
No abstract record available.
Inventors
- 👤 Samuel Y Gibbon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:24
CPC Classifications
A; A61; A61G; A61G11/00; A61G11/009; B; B25; B25J; B25J21/00; B25J21/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1303712A
Cited
US1215327A
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US1643982A
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US2017539A
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US2405682A
Cited
US2391871A
Cited
US2478852A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-29 | 1958-05-31 | 1958-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-29 | 1962-05-31 | 1962-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-29 | 1966-05-31 | 1966-11-30 | $7700.00 | Window Closed / Lapsed |