US2527772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulping machine
Assignee: E D Jones & Sons Co
•
Filing: 1947-05-06
•
Granted: 1950-10-31
•
Expires: 1967-05-06
Abstract
No abstract record available.
Inventors
- 👤 Stephen G Stapley
- 👤 Subart William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:59
CPC Classifications
D; D21; D21D; D21D1/00; D21D1/20; D21D1/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US342802A
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US381515A
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US447853A
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US620884A
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GB189708664A
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US963353A
Cited
US1074844A
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US1187932A
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US1775743A
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US2129789A
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US2433490A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-30 | 1954-05-01 | 1954-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-30 | 1958-05-01 | 1958-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-30 | 1962-05-01 | 1962-10-31 | $7700.00 | Window Closed / Lapsed |