US2644983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube extrusion
Assignee: Uniroyal Inc
•
Filing: 1950-06-29
•
Granted: 1953-07-14
•
Expires: 1970-06-29
Abstract
No abstract record available.
Inventors
- 👤 Nathaniel H Curtiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:29
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/03; B29C48/09; B29C48/15; B29C48/25; B29C48/30; B29C48/32; B29C48/34; B29C48/94; B29C48/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US121166A
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US454030A
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US704698A
Cited
US1904197A
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US1770396A
Cited
DE671490C
Cited
US2144213A
Cited
US2443289A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-13 | 1957-01-12 | 1957-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-13 | 1961-01-12 | 1961-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-13 | 1965-01-12 | 1965-07-14 | $7700.00 | Window Closed / Lapsed |