US3492991A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Autotransfusion apparatus
Assignee: Individual
•
Filing: 1967-02-23
•
Granted: 1970-02-03
•
Expires: 1987-02-23
Abstract
No abstract record available.
Inventors
- 👤 Richard H Dyer Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:44
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/36; A61M1/3621; A61M1/3627
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2032614A
Cited
US2573637A
Cited
US2702034A
Cited
US2682268A
Cited
US2804075A
Cited
US3175555A
Cited
US3191600A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-02 | 1973-08-04 | 1974-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-02 | 1977-08-04 | 1978-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-02 | 1981-08-04 | 1982-02-03 | $7700.00 | Window Closed / Lapsed |