Patent US2570018A successfully refreshed from Google Patents.
US2570018A
Expired / Lapsed
US
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Combination venetian blind and awning
Assignee: Individual
•
Filing: 1950-06-28
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Granted: 1951-10-02
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Expires: 1970-06-28
Abstract
No abstract record available.
Inventors
- 👤 James C Williamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:48
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/264
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1636200A
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US1645947A
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US1841065A
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US1858801A
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US2233515A
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US2244012A
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US2254705A
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US2317659A
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US2339878A
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US2377746A
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US2504771A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-01 | 1955-04-02 | 1955-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-01 | 1959-04-02 | 1959-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-01 | 1963-04-02 | 1963-10-02 | $7700.00 | Window Closed / Lapsed |