Patent US2579099A successfully refreshed from Google Patents.
US2579099A
Expired / Lapsed
US
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Window construction
Assignee: Individual
•
Filing: 1947-08-29
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Granted: 1951-12-18
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Expires: 1967-08-29
Abstract
No abstract record available.
Inventors
- 👤 Walter J Sherry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:42
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US251426A
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US444302A
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US1109793A
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US1630691A
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US1690204A
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US1678748A
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US1882260A
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US1911292A
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US2040853A
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US2249641A
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US2320268A
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 |