Patent US3056954A successfully refreshed from Google Patents.
US3056954A
Expired / Lapsed
US
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Portable signal device
Assignee: Individual
•
Filing: 1960-10-03
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Granted: 1962-10-02
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Expires: 1980-10-03
Abstract
No abstract record available.
Inventors
- 👤 Jorritsma Sidney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:33
CPC Classifications
G; G08; G08B; G08B5/00; G08B5/22; G08B5/36; G08B5/38; F; F21; F21L; F21L2/00; F21V; F21V33/00; G09; G09F; G09F9/00
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) | 1965-10-01 | 1966-04-02 | 1966-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-01 | 1970-04-02 | 1970-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-01 | 1974-04-02 | 1974-10-02 | $7700.00 | Window Closed / Lapsed |