Patent US2836385A successfully refreshed from Google Patents.
US2836385A
Expired / Lapsed
US
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Foldable stand for portable street signs
Assignee: Eastern Metal of Elmira Inc
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Filing: 1954-01-27
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Granted: 1958-05-27
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Expires: 1974-01-27
Abstract
No abstract record available.
Inventors
- 👤 Jr John H Knapp
- 👤 Burleigh M Names
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:13
CPC Classifications
E; E01; E01F; E01F9/00; E01F9/60; E01F9/688; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32262; Y10T403/32319; Y10T403/32327; Y10T403/32352
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) | 1961-05-26 | 1961-11-25 | 1962-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-26 | 1965-11-25 | 1966-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-26 | 1969-11-25 | 1970-05-27 | $7700.00 | Window Closed / Lapsed |