US2149992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-transforming screen or reflector and method of making and using the same
Assignee: General Electric Co
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Filing: 1936-10-08
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Granted: 1939-03-07
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Expires: 1956-10-08
Abstract
No abstract record available.
Inventors
- 👤 Gordon R Fonda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:37
CPC Classifications
C; C09; C09K; C09K11/00; C09K11/06; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/918; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24917; Y10T428/24926; Y10T428/24934; Y10T428/26; Y10T428/31504; Y10T428/31551; Y10T428/31627; Y10T428/3163; Y10T428/31634; Y10T428/31638; Y10T428/31678; Y10T428/31688; Y10T428/31703; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31971; Y10T428/31975; Y10T428/31978; Y10T428/31982; Y10T442/00; Y10T442/20; Y10T442/259; Y10T442/2598
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-03-06 | 1942-09-05 | 1943-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-03-06 | 1946-09-05 | 1947-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-03-06 | 1950-09-05 | 1951-03-07 | $7700.00 | Window Closed / Lapsed |