US2964832A
Expired / Lapsed
US
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Ferroelectrics
Assignee: Unisys Corp
•
Filing: 1957-07-25
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Granted: 1960-12-20
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Expires: 1977-07-25
Abstract
No abstract record available.
Inventors
- 👤 Paul E Oberg
- 👤 Robert W Olmen
- 👤 Warren J Geipel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:25
CPC Classifications
H; H01; H01G; H01G7/00; H01G7/02; H01G7/025; Y; Y10; Y10T; Y10T29/00; Y10T29/42
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) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |