US2558243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light transmission screen and method of manufacture
Assignee: Warner Bros Entertainment Inc
•
Filing: 1948-07-26
•
Granted: 1951-06-26
•
Expires: 1968-07-26
Abstract
No abstract record available.
Inventors
- 👤 James A Gibbons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:30
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/20; G02B5/205; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31971; Y10T428/31975; Y10T428/31978; Y10T428/31986
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1776269A
Cited
US1841274A
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US2072858A
Cited
US2257999A
Cited
US2315974A
Cited
US2370263A
Cited
US2418605A
Cited
US2444492A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-25 | 1954-12-25 | 1955-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-25 | 1958-12-25 | 1959-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-25 | 1962-12-25 | 1963-06-26 | $7700.00 | Window Closed / Lapsed |