Patent US2658429A successfully refreshed from Google Patents.
US2658429A
Expired / Lapsed
US
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Paperboard forming machine
Assignee: Individual
•
Filing: 1950-01-07
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Granted: 1953-11-10
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Expires: 1970-01-07
Abstract
No abstract record available.
Inventors
- 👤 Bernard A Malkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:24
CPC Classifications
D; D21; D21F; D21F9/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
US1714238A
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US1937426A
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US1964291A
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US2006519A
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US2249128A
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US2243773A
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US2329553A
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US2339711A
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US2396696A
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US2528189A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |