US2927574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endoscope for the observation of ventricles of the body or the like
Assignee: RICHARD WOLF
•
Filing: 1955-05-16
•
Granted: 1960-03-08
•
Expires: 1975-05-16
Abstract
No abstract record available.
Inventors
- 👤 Scholz Erwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:04
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/00064; A61B1/00071; A61B1/0008; A61B1/00096; A61B1/00163; A61B1/00174; A61B1/00179; A61B1/00188
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1680491A
Cited
US849344A
Cited
US1001786A
Cited
US1453297A
Cited
US1680490A
Cited
US1826090A
Cited
US1881588A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-08 | 1963-09-07 | 1964-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-08 | 1967-09-07 | 1968-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-08 | 1971-09-07 | 1972-03-08 | $7700.00 | Window Closed / Lapsed |