US3067774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Distributing valve and fluid-solid contacting apparatus utilizing same
Assignee: Universal Oil Products Co
•
Filing: 1959-11-20
•
Granted: 1962-12-11
•
Expires: 1979-11-20
Abstract
No abstract record available.
Inventors
- 👤 Mccausland John Woods
- 👤 Leslie C Hardison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:40
CPC Classifications
B; B05; B05B; B05B3/00; B05B3/02; B01; B01J; B01J8/00; B01J8/02; B01J8/0278; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86348; Y10T137/86372; Y10T137/86389; Y10T137/86405; Y10T137/86493; Y10T137/86863; Y10T137/86871
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2371619A
Cited
US2511477A
Cited
US2517339A
Cited
US2566071A
Cited
US2558376A
Cited
US2655929A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |