US2826753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Object detectors
Assignee: Individual
•
Filing: 1954-04-13
•
Granted: 1958-03-11
•
Expires: 1974-04-13
Abstract
No abstract record available.
Inventors
- 👤 Reynold S Chapin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:21
CPC Classifications
G; G08; G08B; G08B13/00; G08B13/16; G08B13/1609; G08B13/1618; G08B13/1627; G01; G01S; G01S1/00; G01S1/72; G01S13/00; G01S13/02; G01S13/50; G01S13/52; G01S13/56; Y; Y10; Y10S; Y10S367/00; Y10S367/909
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2333688A
Cited
US2238041A
Cited
GB585988A
Cited
US2617983A
Cited
US2659077A
Cited
US2677126A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-10 | 1961-09-09 | 1962-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-10 | 1965-09-09 | 1966-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-10 | 1969-09-09 | 1970-03-11 | $7700.00 | Window Closed / Lapsed |