Patent US2508690A successfully refreshed from Google Patents.
US2508690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gastrointestinal tube
Assignee: Individual
•
Filing: 1948-07-13
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Granted: 1950-05-23
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Expires: 1968-07-13
Abstract
No abstract record available.
Inventors
- 👤 Schmerl Egon Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:03
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/0003; A61F5/0013; A61F5/0036; A61J; A61J15/00; A61J15/0003; A61J15/0007; A61M; A61M25/00; A61M25/01; A61J15/0015; A61J15/0023; A61J2200/00; A61J2200/60
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) | 1953-05-22 | 1953-11-21 | 1954-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-22 | 1957-11-21 | 1958-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-22 | 1961-11-21 | 1962-05-23 | $7700.00 | Window Closed / Lapsed |