Patent US3467057A successfully refreshed from Google Patents.
US3467057A
Expired / Lapsed
US
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Electron beam evaporator
Assignee: Hitachi Ltd
•
Filing: 1967-07-25
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Granted: 1969-09-16
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Expires: 1987-07-25
Abstract
No abstract record available.
Inventors
- 👤 Hifumi Tamura
- 👤 Hirokazu Kimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:42
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/24; C23C14/28; C23C14/30; H; H01; H01J; H01J37/00; H01J37/30; H01J37/305; H01J37/3053
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2860251A
Cited
US2932588A
Cited
US2960457A
Cited
US2928943A
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US3290567A
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US3120610A
Cited
US3230110A
Cited
US3168418A
Cited
US3227133A
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US3303320A
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GB1010456A
Cited
US3347701A
Cited
US3310424A
Cited
US3330752A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-15 | 1973-03-17 | 1973-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-15 | 1977-03-17 | 1977-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-15 | 1981-03-17 | 1981-09-16 | $7700.00 | Window Closed / Lapsed |