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US2880857A
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US
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Assignee: ST Regis Paper Co
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Filing: 1955-12-28
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Granted: 1959-04-07
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Expires: 1975-12-28
Abstract
No abstract record available.
Inventors
- 👤 Willard J Parsons
- 👤 Vincent R Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:50
CPC Classifications
B; B25; B25H; B25H3/00; B25H3/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1459399A
Cited
US1899012A
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US1917349A
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US1939824A
Cited
GB452883A
Cited
US2054959A
Cited
US2589593A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |