US2927222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polarizing semiconductive apparatus
Assignee: Lanteris Space LLC
•
Filing: 1955-05-27
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Granted: 1960-03-01
•
Expires: 1975-05-27
Abstract
No abstract record available.
Inventors
- 👤 Roland J Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:44
CPC Classifications
H; H10; H10D; H10D62/00; H10D62/60; H10D10/00; H10D62/10; H10D99/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2497770A
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US2701326A
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US2727146A
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FR1038658A
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US2579336A
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US2765516A
Cited
FR1078688A
Cited
FR1080034A
Cited
US2742383A
Cited
US2759133A
Cited
US2764642A
Cited
US2790034A
Cited
US2725505A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-01 | 1963-08-31 | 1964-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-01 | 1967-08-31 | 1968-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-01 | 1971-08-31 | 1972-03-01 | $7700.00 | Window Closed / Lapsed |