US2737087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Headbox for paper machine
Assignee: International Paper Canada Inc
•
Filing: 1950-04-25
•
Granted: 1956-03-06
•
Expires: 1970-04-25
Abstract
No abstract record available.
Inventors
- 👤 Weston T Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:10
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/02; D21F1/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US851227A
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US1610742A
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US1890634A
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US1909150A
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US2205693A
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US2156445A
Cited
US2225435A
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US2186761A
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US2347130A
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US2509822A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-06 | 1959-09-05 | 1960-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-06 | 1963-09-05 | 1964-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-06 | 1967-09-05 | 1968-03-06 | $7700.00 | Window Closed / Lapsed |