US3475662A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hermetically sealed electrical device
Assignee: Westinghouse Electric Corp
•
Filing: 1967-11-22
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Granted: 1969-10-28
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Expires: 1987-11-22
Abstract
No abstract record available.
Inventors
- 👤 Joseph E Zido
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:31
CPC Classifications
H; H10; H10W; H10W72/00; H10W74/00; H10W74/10; H10W74/111; H10W74/114; H10W74/131; Y; Y10; Y10S; Y10S257/00; Y10S257/909
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |