Patent US2474516A successfully refreshed from Google Patents.
US2474516A
Expired / Lapsed
US
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Tractor umbrella
Assignee: Troy Sunshade Co
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Filing: 1945-02-26
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Granted: 1949-06-28
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Expires: 1965-02-26
Abstract
No abstract record available.
Inventors
- 👤 Daniel Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:20
CPC Classifications
A; A45; A45B; A45B25/00; A45B25/06; A45B23/00; A45B2023/0012
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US40558A
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US334368A
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US362888A
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US704128A
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US743476A
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US1590867A
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US1592723A
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US2101510A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-27 | 1952-12-27 | 1953-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-27 | 1956-12-27 | 1957-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-27 | 1960-12-27 | 1961-06-28 | $7700.00 | Window Closed / Lapsed |