US3001015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unidirectional light transmitting system for c.r.t. displays
Assignee: Individual
•
Filing: 1959-04-30
•
Granted: 1961-09-19
•
Expires: 1979-04-30
Abstract
No abstract record available.
Inventors
- 👤 Ralph A E Weiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:24
CPC Classifications
G; G02; G02B; G02B7/00; G02B7/18; G02B7/1805; H; H01; H01J; H01J29/00; H01J29/86; H01J29/89; H01J29/896
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2731872A
Cited
US2388203A
Cited
US2550962A
Cited
US2754718A
Cited
US2773411A
Cited
US2942254A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-18 | 1965-03-20 | 1965-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-18 | 1969-03-20 | 1969-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-18 | 1973-03-20 | 1973-09-19 | $7700.00 | Window Closed / Lapsed |