US2388474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inspection light
Assignee: JOSEPH L SWITZER
•
Filing: 1943-01-07
•
Granted: 1945-11-06
•
Expires: 1963-01-07
Abstract
No abstract record available.
Inventors
- 👤 Ellis Greer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:35
CPC Classifications
F; F21; F21V; F21V21/00; F21V21/14; F21V21/145; A; A61; A61N; A61N5/00; A61N5/06; F21S; F21S8/00; F21V21/26; F21V21/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1948-11-05 | 1949-05-07 | 1949-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-11-05 | 1953-05-07 | 1953-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-11-05 | 1957-05-07 | 1957-11-06 | $7700.00 | Window Closed / Lapsed |