US3305748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grid electrode for an electron discharge device
Assignee: Compagnie Francaise Thomson Houston SA
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Filing: 1963-02-27
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Granted: 1967-02-21
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Expires: 1983-02-27
Abstract
No abstract record available.
Inventors
- 👤 Pehe Francois Marie
- 👤 Gerlach Pierre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:50
CPC Classifications
H; H01; H01J; H01J19/00; H01J19/28; H01J19/38; H01J2893/00; H01J2893/0001; H01J2893/0012; H01J2893/0015; H01J2893/0017
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
AN ELECTRODE FOR AN ELECTRON DISCHARGE DEVICE COMPRISING A TUBULAR CYLINDRICAL BODY HAVING A PLURALITY OF SEPARATE, ELONGATED SLOTS FORMED THROUGH THE WALL OF SAID BODY, SAID SLOTS BEING INCLINED ALL IN A COMMON DIRECTION WITH RESPECT TO THE GENERATRICES OF THE CYLINDRIAL SURFACE OF THE BODY OVER AT LEAST A MAJOR PORTION OF THEIR EXTENT SO AS TO HAVE BETWEEN SAID SLOTS SKEW STRIPS HAVING A SUBSTANTIAL FREE LENGTH WITHOUT TRANSVERSE BONDS THEREBETWEEN.
Claim 2
Dependent Claim
74 words
AN ELECTRODE FOR AN ELECTRON DISCHARGE DEVICE COMPRISING A TUBULAR CYLINDRICAL BODY HAVING A PLURALITY OF SEPARATE, ELONGATED SLOTS FORMED THROUGH THE WALL OF SAID BODY, SAID SLOTS BEING INCLINED ALL IN A COMMON DIRECTION WITH RESPECT TO THE GENERATRICES OF THE CYLINDRIAL SURFACE OF THE BODY OVER AT LEAST A MAJOR PORTION OF THEIR EXTENT SO AS TO HAVE BETWEEN SAID SLOTS SKEW STRIPS HAVING A SUBSTANTIAL FREE LENGTH WITHOUT TRANSVERSE BONDS THEREBETWEEN.
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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |