US2948191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retroreflecting surface
Assignee: Cataphote Inc
•
Filing: 1956-06-06
•
Granted: 1960-08-09
•
Expires: 1976-06-06
Abstract
No abstract record available.
Inventors
- 👤 Jr George T Hodgson
- 👤 Robert C Wells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:26
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/12; G02B5/126; G02B5/128
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US722847A
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US1093498A
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US1670327A
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US1649708A
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US1959090A
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US2143946A
Cited
US2377508A
Cited
US2379741A
Cited
US2421277A
Cited
US2407680A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |