Patent US3539674A successfully refreshed from Google Patents.
US3539674A
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US
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Method of manufacturing a plastic catheter
Assignee: Davol Inc
•
Filing: 1968-07-22
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Granted: 1970-11-10
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Expires: 1988-07-22
Abstract
No abstract record available.
Inventors
- 👤 Paul Dereniuk
- 👤 Walter J Blecharczyk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:56
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/1027; A61M25/1036; A61M25/1034; B; B29; B29C; B29C41/00; B29C41/02; B29C41/14; A61M25/1029; B29L; B29L2031/00; B29L2031/753; B29L2031/7542
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2043630A
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US2314262A
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US2330400A
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US2230151A
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US2373529A
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US2390070A
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US3304353A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-09 | 1974-05-11 | 1974-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-09 | 1978-05-11 | 1978-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-09 | 1982-05-11 | 1982-11-10 | $7700.00 | Window Closed / Lapsed |