US2701849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glow discharge tube
Assignee: Hartford National Bank and Trust Co
•
Filing: 1947-02-14
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Granted: 1955-02-08
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Expires: 1967-02-14
Abstract
No abstract record available.
Inventors
- 👤 Penning Frans Michel
- 👤 Jurriaanse Tom
- 👤 Moubis Jozef Hubert August
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:12
CPC Classifications
H; H01; H01J; H01J17/00; H01J17/38; H01J17/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A GLOW DISCHARGE TUBE COMPRISING A GASEOUS MEDIUM FOR PRODUCING A GASEOUS DISCHARGE, A CATHODE FOR SAID GASEOUS DISCHARGE HAVING SURFACE PORTIONS CONSISTING OF MOLYBDENUM, AN ANODE FOR SAID GASEOUS DISCHARGE AND DEFINING WITH SAID CATHODE A GASEOUS DISCHARGE SPACE, A WALL PORTION ENCLOSING SAID DISCHARGE SPACE, AND A MOLYBDENUM COATING OF VISIBLE THICKNESS SUBSTANTIALLY ENTIRELY COVERING THE SURFACE OF SAID WALL PORTION FACING SAID DISCHARGE SPACE.
Claim 2
Dependent Claim
67 words
A GLOW DISCHARGE TUBE COMPRISING A GASEOUS MEDIUM FOR PRODUCING A GASEOUS DISCHARGE, A CATHODE FOR SAID GASEOUS DISCHARGE HAVING SURFACE PORTIONS CONSISTING OF MOLYBDENUM, AN ANODE FOR SAID GASEOUS DISCHARGE AND DEFINING WITH SAID CATHODE A GASEOUS DISCHARGE SPACE, A WALL PORTION ENCLOSING SAID DISCHARGE SPACE, AND A MOLYBDENUM COATING OF VISIBLE THICKNESS SUBSTANTIALLY ENTIRELY COVERING THE SURFACE OF SAID WALL PORTION FACING SAID DISCHARGE SPACE.
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) | 1958-02-07 | 1958-08-09 | 1959-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-07 | 1962-08-09 | 1963-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-07 | 1966-08-09 | 1967-02-08 | $7700.00 | Window Closed / Lapsed |