US3421499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impregnation device for locating the site of internal bleeding
Assignee: FREDERICK L HAUSER
•
Filing: 1965-12-20
•
Granted: 1969-01-14
•
Expires: 1985-12-20
Abstract
No abstract record available.
Inventors
- 👤 Russell S Bray
- 👤 Frederick L Hauser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:22
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/02; A61B5/02042; A61B1/00; A61B1/273; A61B1/2736
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1880964A
Cited
US3097636A
Cited
US3217705A
Cited
US3155091A
Cited
US3302634A
Cited
US3302635A
Cited
US3302637A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |