US2473269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Papermaking machine
Assignee: Rice Barton Corp
•
Filing: 1944-09-02
•
Granted: 1949-06-14
•
Expires: 1964-09-02
Abstract
No abstract record available.
Inventors
- 👤 Charles S Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:32
CPC Classifications
D; D21; D21F; D21F9/00; D21F9/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US206107A
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DE30980C
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US990950A
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US1060122A
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US1143931A
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US1527297A
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US1627882A
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US1595894A
Cited
US1699487A
Cited
GB316224A
Cited
US2005839A
Cited
US2365658A
Cited
US2356244A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-13 | 1952-12-13 | 1953-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-13 | 1956-12-13 | 1957-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-13 | 1960-12-13 | 1961-06-14 | $7700.00 | Window Closed / Lapsed |