US2848601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double lens system for securing either spot or flood effects
Assignee: Bridgeport Metal Goods Manufacturing Co
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Filing: 1955-12-14
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Granted: 1958-08-19
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Expires: 1975-12-14
Abstract
No abstract record available.
Inventors
- 👤 William H Beach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:41
CPC Classifications
F; F21; F21V; F21V5/00; F21V5/006; F21L; F21L4/00; F21L4/005; F21V5/008; F21V5/04; G; G03; G03B; G03B15/00; G03B15/02; G03B15/06
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) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |