US3418442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making hermetic seals
Assignee: TDK Micronas GmbH
•
Filing: 1964-11-16
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Granted: 1968-12-24
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Expires: 1984-11-16
Abstract
No abstract record available.
Inventors
- 👤 James W Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:46
CPC Classifications
H; H01; H01J; H01J5/00; H01J5/20; H01J5/22; H01J5/28; H01B; H01B13/00; H01B17/00; H01B17/26; H01B17/30; H01B17/303; H01B17/305; H01G; H01G13/00; H01G9/00; H01G9/004; H01G9/08; H01G9/10; H01J5/32; H01J5/40; H01J5/42; H01J2893/00; H01J2893/0033; H01J2893/0034; H01J2893/0037; H01J2893/0044; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49174; Y10T29/49181; Y10T29/49183
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) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |