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Patent US2772608A successfully refreshed from Google Patents.
US2772608A
Expired / Lapsed
US
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Reduction of edge flashing on molded pulp articles
Assignee: Keyes Fibre Corp
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Filing: 1951-11-19
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Granted: 1956-12-04
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Expires: 1971-11-19
Abstract
No abstract record available.
Inventors
- 👤 Richard L Emery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:52
CPC Classifications
D; D21; D21J; D21J3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1845830A
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US2377864A
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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) | 1959-12-04 | 1960-06-04 | 1960-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-04 | 1964-06-04 | 1964-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-04 | 1968-06-04 | 1968-12-04 | $7700.00 | Window Closed / Lapsed |