US2740405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical sponge with radioactive tracer
Assignee: Individual
•
Filing: 1948-08-04
•
Granted: 1956-04-03
•
Expires: 1968-08-04
Abstract
No abstract record available.
Inventors
- 👤 Howard C Riordan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:56
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/44; A61F13/36; A61B; A61B90/00; A61B90/39; A61B2090/392
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US652519A
Cited
GB191305182A
Cited
US1603767A
Cited
GB333980A
Cited
US1980519A
Cited
US1956948A
Cited
US2163588A
Cited
US2333641A
Cited
US2401723A
Cited
US2378328A
Cited
US2553382A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-03 | 1959-10-03 | 1960-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-03 | 1963-10-03 | 1964-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-03 | 1967-10-03 | 1968-04-03 | $7700.00 | Window Closed / Lapsed |