US2802933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lighting fixture
Assignee: Perfect Line Manufacturing Corp
•
Filing: 1955-05-31
•
Granted: 1957-08-13
•
Expires: 1975-05-31
Abstract
No abstract record available.
Inventors
- 👤 Broadwin Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:02
CPC Classifications
F; F21; F21V; F21V21/00; F21V21/02; F21V21/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1493487A
Cited
GB278178A
Cited
US1782791A
Cited
US2518936A
Cited
US2456903A
Cited
US2536799A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-12 | 1961-02-11 | 1961-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-12 | 1965-02-11 | 1965-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-12 | 1969-02-11 | 1969-08-13 | $7700.00 | Window Closed / Lapsed |