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US2652600A
Expired / Lapsed
US
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Composite panel
Assignee: Individual
•
Filing: 1950-02-13
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Granted: 1953-09-22
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Expires: 1970-02-13
Abstract
No abstract record available.
Inventors
- 👤 Joseph R Burke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:19
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2288104A
Cited
US1107369A
Cited
GB402065A
Cited
FR758189A
Cited
FR46248E
Cited
FR793478A
Cited
US2479870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-21 | 1957-03-23 | 1957-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-21 | 1961-03-23 | 1961-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-21 | 1965-03-23 | 1965-09-22 | $7700.00 | Window Closed / Lapsed |