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Patent US2589633A successfully refreshed from Google Patents.
US2589633A
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Panel construction
Assignee: Individual
•
Filing: 1949-04-13
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Granted: 1952-03-18
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Expires: 1969-04-13
Abstract
No abstract record available.
Inventors
- 👤 William L Shepheard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:58
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/26; E04C2/284; E04C2/292; E04B; E04B1/00; E04B1/02; E04B1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1761037A
Cited
US1984007A
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US2097697A
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US2175579A
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US2205730A
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US2260178A
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US2297609A
Cited
US2282329A
Cited
US2482592A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-18 | 1955-09-17 | 1956-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-18 | 1959-09-17 | 1960-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-18 | 1963-09-17 | 1964-03-18 | $7700.00 | Window Closed / Lapsed |