US2864191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-pull portable sign stand
Assignee: Individual
•
Filing: 1956-12-18
•
Granted: 1958-12-16
•
Expires: 1976-12-18
Abstract
No abstract record available.
Inventors
- 👤 Elmer J Hagen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:16
CPC Classifications
G; G09; G09F; G09F15/00; G09F15/0006; G09F15/0056; G09F15/0062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US314986A
Cited
US381766A
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US1224893A
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US1469212A
Cited
US2638692A
Cited
US2445136A
Cited
US2718080A
Cited
US2719506A
Cited
US2783566A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-15 | 1962-06-16 | 1962-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-15 | 1966-06-16 | 1966-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-15 | 1970-06-16 | 1970-12-16 | $7700.00 | Window Closed / Lapsed |