Patent US2494273A successfully refreshed from Google Patents.
US2494273A
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US
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Apparatus for expanding thermoplastic tubing
Assignee: Goodrich Corp
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Filing: 1947-01-29
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Granted: 1950-01-10
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Expires: 1967-01-29
Abstract
No abstract record available.
Inventors
- 👤 Voorhis F Wigal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:50
CPC Classifications
C; C09; C09J; C09J105/00; C09J105/14; B; B29; B29C; B29C61/00; B29C61/06; B29C61/08; Y; Y10; Y10S; Y10S264/00; Y10S264/73
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-09 | 1953-07-11 | 1954-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-09 | 1957-07-11 | 1958-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-09 | 1961-07-11 | 1962-01-10 | $7700.00 | Window Closed / Lapsed |