US2792489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Final sealing apparatus for semiconductor translating devices
Assignee: Raytheon Co
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Filing: 1955-07-07
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Granted: 1957-05-14
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Expires: 1975-07-07
Abstract
No abstract record available.
Inventors
- 👤 Jr Fred Wohlman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:39
CPC Classifications
H; H10; H10P; H10P72/00; H10P72/04; H10P72/0441; H01; H01J; H01J9/00; H01J9/24; H01J9/32
Claims Analysis
Total Claims: 0
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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) | 1960-05-13 | 1960-11-12 | 1961-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-13 | 1964-11-12 | 1965-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-13 | 1968-11-12 | 1969-05-14 | $7700.00 | Window Closed / Lapsed |