US2809773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for transferring contaminable liquids
Assignee: Virtis Co Inc
•
Filing: 1953-12-02
•
Granted: 1957-10-15
•
Expires: 1973-12-02
Abstract
No abstract record available.
Inventors
- 👤 Charles E Bender
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:18
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/02; B01L3/021; B01L3/0213
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US174853A
Cited
US1313566A
Cited
US1319115A
Cited
FR348083A
Cited
US2348831A
Cited
US2376231A
Cited
FR52270E
Cited
US2634028A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-14 | 1961-04-15 | 1961-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-14 | 1965-04-15 | 1965-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-14 | 1969-04-15 | 1969-10-15 | $7700.00 | Window Closed / Lapsed |