US2787433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-stopping hinged sign
Assignee: Shaw and Slavsky Inc
•
Filing: 1954-06-18
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Granted: 1957-04-02
•
Expires: 1974-06-18
Abstract
No abstract record available.
Inventors
- 👤 Robert J Slavsky
- 👤 John R Slavsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:51
CPC Classifications
G; G09; G09F; G09F1/00; G09F1/10; G09F7/00; G09F7/18; G09F7/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US724039A
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US1203441A
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US1475025A
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US1600887A
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US1866107A
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US2147890A
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US2526322A
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US2628051A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-01 | 1960-10-01 | 1961-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-01 | 1964-10-01 | 1965-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-01 | 1968-10-01 | 1969-04-02 | $7700.00 | Window Closed / Lapsed |