US2422869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gaging and sampling apparatus for liquid storage tanks
Assignee: Individual
•
Filing: 1945-02-05
•
Granted: 1947-06-24
•
Expires: 1965-02-05
Abstract
No abstract record available.
Inventors
- 👤 John H Wiggins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:19
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/12; G01F; G01F23/00; G01N2001/1031; G01N2001/1037; Y; Y10; Y10S; Y10S210/00; Y10S210/09; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7313; Y10T137/7323; Y10T137/8593; Y10T137/86187; Y10T137/86348; Y10T137/86372
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189419881A
Cited
US723832A
Cited
US1358355A
Cited
US1503179A
Cited
US1613312A
Cited
US1937755A
Cited
US2237461A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-06-23 | 1950-12-23 | 1951-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-23 | 1954-12-23 | 1955-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-23 | 1958-12-23 | 1959-06-24 | $7700.00 | Window Closed / Lapsed |