US2435519A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image-forming heat detector
Assignee: RCA Corp
•
Filing: 1944-02-14
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Granted: 1948-02-03
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Expires: 1964-02-14
Abstract
No abstract record available.
Inventors
- 👤 William A Tolson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:18
CPC Classifications
G; G01; G01J; G01J5/00; G01J5/38; G01J5/42; G02; G02B; G02B23/00; G02B23/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-02-02 | 1951-08-04 | 1952-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-02-02 | 1955-08-04 | 1956-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-02-02 | 1959-08-04 | 1960-02-03 | $7700.00 | Window Closed / Lapsed |