US2673288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reflector for the production of light beams
Assignee: Siemens Mobility Ltd
•
Filing: 1949-10-12
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Granted: 1954-03-23
•
Expires: 1969-10-12
Abstract
No abstract record available.
Inventors
- 👤 Stevens Sydney Arthur
- 👤 Sheppard Edward Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:49
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/0001; G02B6/0011; G02B6/0013; G02B6/0015; G02B6/002; G02B6/0021; F; F21; F21S; F21S41/00; F21S41/30; F21S41/32; F21S41/322; G02B6/0033; G02B6/0035; G02B6/0036; F21W; F21W2111/00; F21W2111/02; Y; Y10; Y10S; Y10S116/00; Y10S116/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1199071A
Cited
US1341674A
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US1399973A
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US1464270A
Cited
US1570503A
Cited
GB334891A
Cited
US1903417A
Cited
US2418195A
Cited
US2589569A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-22 | 1957-09-21 | 1958-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-22 | 1961-09-21 | 1962-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-22 | 1965-09-21 | 1966-03-23 | $7700.00 | Window Closed / Lapsed |