Patent US2431048A successfully refreshed from Google Patents.
US2431048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mold press
Assignee: Wingfoot Corp
•
Filing: 1945-10-10
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Granted: 1947-11-18
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Expires: 1965-10-10
Abstract
No abstract record available.
Inventors
- 👤 Karl B Kilborn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:45
CPC Classifications
B; B30; B30B; B30B11/00; B30B11/02; B30B11/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US903840A
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US1399843A
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US1971850A
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US2013320A
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US2160805A
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US2331015A
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US2354447A
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US2386641A
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US2404631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-17 | 1951-05-19 | 1951-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-17 | 1955-05-19 | 1955-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-17 | 1959-05-19 | 1959-11-18 | $7700.00 | Window Closed / Lapsed |