US2940126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of tapered medico-surgical tubes which have controlled wall thickness by extrusion
Assignee: Individual
•
Filing: 1958-06-03
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Granted: 1960-06-14
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Expires: 1978-06-03
Abstract
No abstract record available.
Inventors
- 👤 David S Sheridan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:34
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/03; B29C48/001; B29C48/09; B29C48/10; B29C48/13
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) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |