US2877342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diffusing lens for spot light reflector
Assignee: Bridgeport Metal Goods Manufacturing Co
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Filing: 1952-10-04
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Granted: 1959-03-10
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Expires: 1972-10-04
Abstract
No abstract record available.
Inventors
- 👤 William H Beach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:26
CPC Classifications
F; F21; F21V; F21V5/00; F21V5/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-09 | 1962-09-08 | 1963-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-09 | 1966-09-08 | 1967-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-09 | 1970-09-08 | 1971-03-10 | $7700.00 | Window Closed / Lapsed |