US3022374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scanning infra-red detector and recorder
Assignee: AT&T Inc
•
Filing: 1947-10-22
•
Granted: 1962-02-20
•
Expires: 1967-10-22
Abstract
No abstract record available.
Inventors
- 👤 Walter H Brattain
- 👤 Neill G Wade
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:30
CPC Classifications
G; G01; G01J; G01J5/00; G01J5/02; G01J5/025; G01J5/04; G01J5/047; G01J5/10; G01J5/20; G01J5/22; G01J5/24; G01J5/48; G01J5/06; G01J2005/066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2411120A
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US2405930A
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US2430283A
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US2467120A
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US2542490A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |