US3416532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drainage tube with means for scraping away debris therewithin
Assignee: ALAN RICHARD GROSSMAN
•
Filing: 1964-07-24
•
Granted: 1968-12-17
•
Expires: 1984-07-24
Abstract
No abstract record available.
Inventors
- 👤 Grossman Alan Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:29
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/84; A61M1/85; A61M1/87; A61M1/83; A61M25/00; A61M2025/0019; A61M25/0067; A61M25/0068; A61M25/007
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-17 | 1972-06-17 | 1972-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-17 | 1976-06-17 | 1976-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-17 | 1980-06-17 | 1980-12-17 | $7700.00 | Window Closed / Lapsed |