US2644552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal plank
Assignee: Globe Wernicke Co
•
Filing: 1946-04-16
•
Granted: 1953-07-07
•
Expires: 1966-04-16
Abstract
No abstract record available.
Inventors
- 👤 Angus S Macdonald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:50
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/38; E04B1/541; E04C; E04C2/00; E04C2/02; E04C2/26; E04C2/284; E04C2/292
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US624603A
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US1312663A
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US968321A
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GB151352A
Cited
US1593718A
Cited
US1706769A
Cited
US1895667A
Cited
US2142305A
Cited
US2048457A
Cited
US2086009A
Cited
US2205730A
Cited
US2231216A
Cited
US2196781A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-06 | 1957-01-05 | 1957-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-06 | 1961-01-05 | 1961-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-06 | 1965-01-05 | 1965-07-07 | $7700.00 | Window Closed / Lapsed |