Patent US2314273A successfully refreshed from Google Patents.
US2314273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid tapping and blowing loss eliminator
Assignee: Individual
•
Filing: 1941-07-21
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Granted: 1943-03-16
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Expires: 1961-07-21
Abstract
No abstract record available.
Inventors
- 👤 Ralph R Gunderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:09
CPC Classifications
B; B67; B67D; B67D1/00; B67D1/08; B67D1/0801; B67D1/0802; B67D2001/0822; B67D2001/0825
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-03-15 | 1946-09-14 | 1947-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-03-15 | 1950-09-14 | 1951-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-03-15 | 1954-09-14 | 1955-03-16 | $7700.00 | Window Closed / Lapsed |