Patent US2693184A successfully refreshed from Google Patents.
US2693184A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hypodermic syringe and aspirating ampoule thereof
Assignee: Compule Corp
•
Filing: 1951-12-01
•
Granted: 1954-11-02
•
Expires: 1971-12-01
Abstract
No abstract record available.
Inventors
- 👤 Marshall L Lockhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:22
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/3148; A61M5/28; A61M5/281; A61M5/283; A61M2005/3112; Y; Y10; Y10S; Y10S604/00; Y10S604/90
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) | 1957-11-01 | 1958-05-03 | 1958-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-01 | 1962-05-03 | 1962-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-01 | 1966-05-03 | 1966-11-02 | $7700.00 | Window Closed / Lapsed |