US3021080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulper
Assignee: Diamond National Corp
•
Filing: 1959-03-17
•
Granted: 1962-02-13
•
Expires: 1979-03-17
Abstract
No abstract record available.
Inventors
- 👤 Merle P Chaplin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:29
CPC Classifications
D; D21; D21D; D21D1/00; D21D1/20; D21D1/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1832882A
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US1768735A
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US2277477A
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US2434449A
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US2540883A
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US2557174A
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US2648261A
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US2654294A
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US2665853A
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US2706621A
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US2719462A
Cited
US2796006A
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US2858990A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-12 | 1965-08-14 | 1966-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-12 | 1969-08-14 | 1970-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-12 | 1973-08-14 | 1974-02-13 | $7700.00 | Window Closed / Lapsed |