US2649341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable platform for traffic direction
Assignee: Individual
•
Filing: 1949-11-02
•
Granted: 1953-08-18
•
Expires: 1969-11-02
Abstract
No abstract record available.
Inventors
- 👤 Charles W Stepler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:18
CPC Classifications
E; E01; E01F; E01F1/00; E01F1/005; E01F9/00; E01F9/60; E01F9/623; E01F9/646
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US766559A
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US946403A
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AT45574B
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US968501A
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US1012246A
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US1219044A
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US1947647A
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GB492111A
Cited
US2327400A
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US2341463A
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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) | 1956-08-17 | 1957-02-16 | 1957-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-17 | 1961-02-16 | 1961-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-17 | 1965-02-16 | 1965-08-18 | $7700.00 | Window Closed / Lapsed |