US2831487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catheter device
Assignee: Individual
•
Filing: 1954-12-03
•
Granted: 1958-04-22
•
Expires: 1974-12-03
Abstract
No abstract record available.
Inventors
- 👤 Maxine A Tafilaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:21
CPC Classifications
A; A61; A61M; A61M31/00; A61M25/00; A61M25/01; A61M25/02; A61M5/00; A61M5/52; A61M16/00; A61M16/06; A61M16/0666; A61M2025/0213; A61M2025/0226; A61M2025/0246; A61M2210/00; A61M2210/06; A61M2210/0618; Y; Y10; Y10S; Y10S128/00; Y10S128/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1206045A
Cited
US1610793A
Cited
GB492723A
Cited
US2290885A
Cited
US2457044A
Cited
US2468383A
Cited
US2663297A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |