US2415211A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image projection system
Assignee: RCA Corp
•
Filing: 1943-02-19
•
Granted: 1947-02-04
•
Expires: 1963-02-19
Abstract
No abstract record available.
Inventors
- 👤 Russell R Law
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:23
CPC Classifications
G; G02; G02B; G02B17/00; G02B17/08; G02B17/0884; G02B17/0888
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US695606A
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US969785A
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US2093288A
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US2200466A
Cited
US2170979A
Cited
US2229302A
Cited
US2273801A
Cited
US2295802A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-02-03 | 1950-08-05 | 1951-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-02-03 | 1954-08-05 | 1955-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-02-03 | 1958-08-05 | 1959-02-04 | $7700.00 | Window Closed / Lapsed |