US3053257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catheter
Assignee: Davol Rubber Co
•
Filing: 1960-08-09
•
Granted: 1962-09-11
•
Expires: 1980-08-09
Abstract
No abstract record available.
Inventors
- 👤 William C Birtwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:31
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/0105; A61M25/0119; A61M25/0017; A61M25/10; A61M25/1002; A61M25/0043; A61M2025/0062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1598283A
Cited
US2892458A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |