US2575540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination chair and support for sousaphones
Assignee: Individual
•
Filing: 1948-07-12
•
Granted: 1951-11-20
•
Expires: 1968-07-12
Abstract
No abstract record available.
Inventors
- 👤 Harry J Wenger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:27
CPC Classifications
G; G10; G10G; G10G5/00; A; A47; A47C; A47C9/00; A47C9/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US284024A
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US525766A
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US774487A
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US1363057A
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US1653772A
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US1772980A
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US1793521A
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US2153821A
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US2433969A
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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) | 1954-11-19 | 1955-05-21 | 1955-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-19 | 1959-05-21 | 1959-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-19 | 1963-05-21 | 1963-11-20 | $7700.00 | Window Closed / Lapsed |