US3379819A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron gun for evaporating or sublimating material in a vacuum environment
Assignee: FILMTECH ASSOCIATES Inc
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Filing: 1966-09-15
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Granted: 1968-04-23
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Expires: 1986-09-15
Abstract
No abstract record available.
Inventors
- 👤 Adelore L Houde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:37
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/02; H01J37/24; C; C23; C23C; C23C14/00; C23C14/22; C23C14/24; C23C14/28; C23C14/30; H01J37/04; H01J37/06; H01J37/065; H01J37/30; H01J37/305; H01J37/3053
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
AN ELECTRON GUN FOR USE IN EVAPORATING MATERIAL IN A VACUUM CHAMBER COMPRISING: (A) A BODY ADAPTED TO BE MOUNTED ON THE OUTSIDE OF THE VACUUM CHAMBER; (B) AT LEAST ONE ELECTRON SOURCE ASSEMBLY CARRIED BY THE BODY FOR PLACEMENT WITHIN THE VACUUM CHAMBER, EACH ELECTRON SOURCE ASSEMBLY HAVING AT LEAST ONE FILAMENT CAPABLE OF EMITTING ELECTRONS UPON THE PASSAGE OF ELECTRIC CURRENT THROUGH THE FILAMENT;
Claim 2
Dependent Claim
66 words
AN ELECTRON GUN FOR USE IN EVAPORATING MATERIAL IN A VACUUM CHAMBER COMPRISING: (A) A BODY ADAPTED TO BE MOUNTED ON THE OUTSIDE OF THE VACUUM CHAMBER; (B) AT LEAST ONE ELECTRON SOURCE ASSEMBLY CARRIED BY THE BODY FOR PLACEMENT WITHIN THE VACUUM CHAMBER, EACH ELECTRON SOURCE ASSEMBLY HAVING AT LEAST ONE FILAMENT CAPABLE OF EMITTING ELECTRONS UPON THE PASSAGE OF ELECTRIC CURRENT THROUGH THE FILAMENT;
References Cited (Backward Citations)
US3303320A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-23 | 1971-10-23 | 1972-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-23 | 1975-10-23 | 1976-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-23 | 1979-10-23 | 1980-04-23 | $7700.00 | Window Closed / Lapsed |