Patent US2579064A successfully refreshed from Google Patents.
US2579064A
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Ventilated awning
Assignee: Individual
•
Filing: 1947-10-31
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Granted: 1951-12-18
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Expires: 1967-10-31
Abstract
No abstract record available.
Inventors
- 👤 David L Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:47
CPC Classifications
E; E04; E04F; E04F10/00; E04F10/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE206665C
Cited
US104486A
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US1486012A
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USRE21053E
Cited
US1735177A
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US1813017A
Cited
CH196898A
Cited
US2279939A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-17 | 1955-06-18 | 1955-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-17 | 1959-06-18 | 1959-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-17 | 1963-06-18 | 1963-12-18 | $7700.00 | Window Closed / Lapsed |