US2467190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-erecting easel
Assignee: COWLES
•
Filing: 1945-10-05
•
Granted: 1949-04-12
•
Expires: 1965-10-05
Abstract
No abstract record available.
Inventors
- 👤 Harold A Cowles
- 👤 Dowling Milton Earle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:44
CPC Classifications
A; A47; A47G; A47G1/00; A47G1/14; A47G1/141
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US289799A
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US568090A
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US673904A
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US1117655A
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US1545771A
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US1651748A
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US1803511A
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US2181390A
Cited
US2115449A
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US2232466A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-11 | 1952-10-11 | 1953-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-11 | 1956-10-11 | 1957-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-11 | 1960-10-11 | 1961-04-12 | $7700.00 | Window Closed / Lapsed |