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US2862291A
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Apparatus and method for separating pressed board from caul plates
Assignee: Changewood Corp
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Filing: 1953-10-30
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Granted: 1958-12-02
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Expires: 1973-10-30
Abstract
No abstract record available.
Inventors
- 👤 James D A Clark
- 👤 Robert D Lambert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:31
CPC Classifications
B; B27; B27N; B27N3/00; B27N3/08; B27N3/18; B27N3/186; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53683; Y10T83/00; Y10T83/202; Y10T83/2074; Y10T83/2083
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US612375A
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US757667A
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US1279563A
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US1472833A
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US1492011A
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US1597875A
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US1883662A
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US2127278A
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US2627883A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-01 | 1962-06-02 | 1962-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-01 | 1966-06-02 | 1966-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-01 | 1970-06-02 | 1970-12-02 | $7700.00 | Window Closed / Lapsed |