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US2429850A
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US
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Inspection light
Assignee: Individual
•
Filing: 1945-03-02
•
Granted: 1947-10-28
•
Expires: 1965-03-02
Abstract
No abstract record available.
Inventors
- 👤 Joseph J W Stephens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:23
CPC Classifications
F; F21; F21L; F21L14/00; F21L14/02; F21L14/026; F21Y; F21Y2103/00; Y; Y10; Y10S; Y10S315/00; Y10S315/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CH27100A
Cited
US1336761A
Cited
US2119146A
Cited
US2056633A
Cited
US2336750A
Cited
US2363109A
Cited
US2347174A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-27 | 1951-04-28 | 1951-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-27 | 1955-04-28 | 1955-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-27 | 1959-04-28 | 1959-10-28 | $7700.00 | Window Closed / Lapsed |