US3469571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for administering a fluid into the intestinal tract
Assignee: Individual
•
Filing: 1967-05-11
•
Granted: 1969-09-30
•
Expires: 1987-05-11
Abstract
No abstract record available.
Inventors
- 👤 Alexander A Vass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:31
CPC Classifications
A; A61; A61M; A61M31/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US212177A
Cited
DE444819C
Cited
US909093A
Cited
US908573A
Cited
GB190712026A
Cited
US1178898A
Cited
US1604518A
Cited
US2630805A
Cited
US2689567A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |