US3491749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for use in the preparation of x-ray photographs of blood vessels
Assignee: Individual
•
Filing: 1965-11-12
•
Granted: 1970-01-27
•
Expires: 1985-11-12
Abstract
No abstract record available.
Inventors
- 👤 Ake Samuel Gidlund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:14
CPC Classifications
A; A61; A61B; A61B6/00; A61B6/48; A61B6/481; A61B6/50; A61B6/504; A61M; A61M5/00; A61M5/007; A61M5/14; A61M5/142; A61M5/145; A61M5/1452; A61M5/14526; A61B6/507; A61M2005/14513
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2039000A
Cited
US2602446A
Cited
US3156236A
Cited
US3155090A
Cited
US3313291A
Cited
US3335724A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |