Patent US3332425A successfully refreshed from Google Patents.
US3332425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic endoscope for probing the esophageal, stomachic, and duodenal regions of the body
Assignee: General Electric Co
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Filing: 1964-06-05
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Granted: 1967-07-25
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Expires: 1984-06-05
Abstract
No abstract record available.
Inventors
- 👤 Fred E Luborsky
- 👤 Betty J Drummond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:22
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/005; A61B1/0051; A61B1/0055; A61B1/0056; A61B1/273; A61B1/2736
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
AN ENDOSCOPE FOR REMOVING SWALLOWED, MAGNETIC FOREIGN OBJECTS FROM THE ESOPHAGEAL, STOMACHIC OR DUODENAL REGIONS OF THE HUMAN BODY COMPRISING: (1) ELONGATED CABLE MEANS INCLUDING; (A) AN OUTER TUBE-LIKE ENVELOPE HAVING A LONGITUDINAL OPENING EXTENDING THERETHROUGH, (B) OPERATOR SHAFT MEANS OF GREATER LENGTH THAN SAID ENVELOPE SLIDABLY DISPOSED WITHIN THE LONGITUDINAL OPENING THEREOF; AND (2) A RETRIEVAL HEAD ASSEMBLY INCLUDING; (A) PERMANENT MAGNET MEANS OPERABLY ATTACHED TO ONE END OF SAID OPERATOR SHAFT MEANS FOR RECIPROCABLE MOVEMENT WITH RESPECT TO SAID TUBELIKE ENVELOPE, (B) A NON-MAGNETIC ELONGATED CASING ATTACHED TO THE END OF SAID ENVELOPE AND HAVING A HOLLOW INTERIOR RECEIVING SAID PERMANENT MAGNET MEANS, SAID INTERIOR BEING OF GREATER LENGTH THAN SAID MAGNET MEANS SO THAT SAID MAGNET MEANS CAN BE MOVED AXIALLY BETWEEN OPERATIVE AND NONOPERATIVE POSITIONS THEREWITHIN,
Claim 2
Dependent Claim
130 words
AN ENDOSCOPE FOR REMOVING SWALLOWED, MAGNETIC FOREIGN OBJECTS FROM THE ESOPHAGEAL, STOMACHIC OR DUODENAL REGIONS OF THE HUMAN BODY COMPRISING: (1) ELONGATED CABLE MEANS INCLUDING; (A) AN OUTER TUBE-LIKE ENVELOPE HAVING A LONGITUDINAL OPENING EXTENDING THERETHROUGH, (B) OPERATOR SHAFT MEANS OF GREATER LENGTH THAN SAID ENVELOPE SLIDABLY DISPOSED WITHIN THE LONGITUDINAL OPENING THEREOF; AND (2) A RETRIEVAL HEAD ASSEMBLY INCLUDING; (A) PERMANENT MAGNET MEANS OPERABLY ATTACHED TO ONE END OF SAID OPERATOR SHAFT MEANS FOR RECIPROCABLE MOVEMENT WITH RESPECT TO SAID TUBELIKE ENVELOPE, (B) A NON-MAGNETIC ELONGATED CASING ATTACHED TO THE END OF SAID ENVELOPE AND HAVING A HOLLOW INTERIOR RECEIVING SAID PERMANENT MAGNET MEANS, SAID INTERIOR BEING OF GREATER LENGTH THAN SAID MAGNET MEANS SO THAT SAID MAGNET MEANS CAN BE MOVED AXIALLY BETWEEN OPERATIVE AND NONOPERATIVE POSITIONS THEREWITHIN,
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |