US2832373A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid treating unit
Assignee: Individual
•
Filing: 1954-01-22
•
Granted: 1958-04-29
•
Expires: 1974-01-22
Abstract
No abstract record available.
Inventors
- 👤 Gunner L Scholer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:15
CPC Classifications
B; B01; B01J; B01J49/00; B01J49/75; F; F16; F16K; F16K15/00; F16K15/02; F16K15/06; F16K15/063; F16K15/066; F16K15/14; F16K15/144; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7842; Y10T137/8593; Y10T137/86389; Y10T137/86477; Y10T137/877; Y10T137/87829; Y10T137/87837; Y10T137/87861
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1789314A
Cited
US2243815A
Cited
US2596915A
Cited
US2596822A
Cited
US2670328A
Cited
US2680714A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-28 | 1961-10-28 | 1962-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-28 | 1965-10-28 | 1966-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-28 | 1969-10-28 | 1970-04-29 | $7700.00 | Window Closed / Lapsed |