US2848626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Infrared radiation detection system
Assignee: RTX Corp
•
Filing: 1955-09-02
•
Granted: 1958-08-19
•
Expires: 1975-09-02
Abstract
No abstract record available.
Inventors
- 👤 William J Brackmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:33
CPC Classifications
G; G02; G02B; G02B23/00; G02B23/12; G01; G01J; G01J5/00; G01J5/60; G01J5/601
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2193606A
Cited
US2652742A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |