US3473532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid container bag with self-closing one-way valve
Assignee: Individual
•
Filing: 1966-06-15
•
Granted: 1969-10-21
•
Expires: 1986-06-15
Abstract
No abstract record available.
Inventors
- 👤 Melvin I Eisenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:16
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/44
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1809259A
Cited
US2863453A
Cited
US3251390A
Cited
US3312221A
Cited
US3332420A
Cited
US3263903A
Cited
US3331421A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |