US3365633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating polycrystalline ceramics for polarizing them
Assignee: LINDEN LAB Inc
•
Filing: 1965-05-27
•
Granted: 1968-01-23
•
Expires: 1985-05-27
Abstract
No abstract record available.
Inventors
- 👤 James W Anderson
- 👤 Steve L Heny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:01
CPC Classifications
H; H01; H01G; H01G7/00; H01G7/02; H01G7/025; H01G7/026; Y; Y10; Y10T; Y10T29/00; Y10T29/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2538554A
Cited
US2702427A
Cited
US2708243A
Cited
US2706326A
Cited
US3108211A
Cited
US3310720A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-22 | 1971-07-24 | 1972-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-22 | 1975-07-24 | 1976-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-22 | 1979-07-24 | 1980-01-23 | $7700.00 | Window Closed / Lapsed |