US3465784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Check valve for intravenous administration of liquids
Assignee: General Time Corp
•
Filing: 1967-05-08
•
Granted: 1969-09-09
•
Expires: 1987-05-08
Abstract
No abstract record available.
Inventors
- 👤 Robert D Cofoid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:36
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/14; A61M5/1411; A61M5/36; A61M5/40; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7297; Y10T137/73; Y10T137/7313; Y10T137/7323; Y10T137/7326; Y10T137/7358; Y10T137/7423; Y10T137/7426; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7908; Y10T137/7909; Y10T137/791
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1013695A
Cited
US1643818A
Cited
DE628167C
Cited
US2784733A
Cited
US2964292A
Cited
US3205889A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-08 | 1973-03-10 | 1973-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-08 | 1977-03-10 | 1977-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-08 | 1981-03-10 | 1981-09-09 | $7700.00 | Window Closed / Lapsed |