Patent US3303372A successfully refreshed from Google Patents.
US3303372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray generator with a knife edged cold cathode emitter
Assignee: Dunlee Corp
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Filing: 1964-08-20
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Granted: 1967-02-07
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Expires: 1984-08-20
Abstract
No abstract record available.
Inventors
- 👤 Robert M Gager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:13
CPC Classifications
H; H01; H01J; H01J35/00; H01J35/02; H01J35/04; H01J35/06; H01J2201/00; H01J2201/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
AN X-RAY GENERATOR COMPRISING AN ELONGATED TUBULAR ENVELOPE, AN ANODE MEANS MOUNTED IN ONE END OF SAID ENVELOPE, A CATHODE MEANS MOUNTED IN THE OPPOSITE END OF SAID ENVELOPE, SAID CATHODE MEANS INCLUDING A MOUNTING BLOCK RIGIDLY SEALED TO SAID ENVELOPE AND HAVING A RIGID TUBULAR EXTENSION EXTENDING COAXIALLY OF SAID ENVELOPE TOWARD SAID ANODE, THE END OF SAID EXTENSION TOWARD SAID ANODE DEFINING A TUBULAR BEARING SURFACE, A CYLINDRICAL MEMBER MOUNTED IN SAID EXTENSION FOR MOVEMENT AXIALLY OF SAID ENVELOPE AND INCLUDING A PORTION SLIDABLY ENGAGING SAID BEARING SURFACE, A BELLOWS SEALED AT ONE END THEREOF TO SAID CYLINDRICAL MEMBER AND AT THE OTHER END THEREOF TO SAID MOUNTING BLOCK, A SHAFT THREADEDLY ENGAGING SAID CYLINDRICAL MEMBER
Claim 2
Dependent Claim
118 words
AN X-RAY GENERATOR COMPRISING AN ELONGATED TUBULAR ENVELOPE, AN ANODE MEANS MOUNTED IN ONE END OF SAID ENVELOPE, A CATHODE MEANS MOUNTED IN THE OPPOSITE END OF SAID ENVELOPE, SAID CATHODE MEANS INCLUDING A MOUNTING BLOCK RIGIDLY SEALED TO SAID ENVELOPE AND HAVING A RIGID TUBULAR EXTENSION EXTENDING COAXIALLY OF SAID ENVELOPE TOWARD SAID ANODE, THE END OF SAID EXTENSION TOWARD SAID ANODE DEFINING A TUBULAR BEARING SURFACE, A CYLINDRICAL MEMBER MOUNTED IN SAID EXTENSION FOR MOVEMENT AXIALLY OF SAID ENVELOPE AND INCLUDING A PORTION SLIDABLY ENGAGING SAID BEARING SURFACE, A BELLOWS SEALED AT ONE END THEREOF TO SAID CYLINDRICAL MEMBER AND AT THE OTHER END THEREOF TO SAID MOUNTING BLOCK, A SHAFT THREADEDLY ENGAGING SAID CYLINDRICAL MEMBER
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) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |