US3405224A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed enclosure for electronic device
Assignee: NEC Corp
•
Filing: 1967-04-19
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Granted: 1968-10-08
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Expires: 1987-04-19
Abstract
No abstract record available.
Inventors
- 👤 Yawata Keisuke
- 👤 Shiba Hiroshi
- 👤 Anazawa Shinzo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:53
CPC Classifications
C; C03; C03C; C03C27/00; C03C27/04; C03C27/042; C03C27/046; H; H10; H10W; H10W76/00; H10W76/10; H10W76/12; H10W76/15; H10W76/157; H10W76/40; H10W70/00; H10W70/60; H10W70/67; H10W70/68; H10W70/682; H10W70/685; H10W72/00; H10W72/071; H10W72/072; H10W72/07231; H10W72/07236; H10W72/075; H10W72/07531; H10W72/07532; H10W72/20; H10W72/251; H10W72/252; H10W72/50; H10W72/541; H10W72/5449; H10W72/551; H10W72/552; H10W72/851; H10W72/874; H10W72/884; H10W72/90; H10W72/931; H10W72/932; H10W90/00; H10W90/701; H10W90/751; H10W90/754; H10W90/756
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) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |