US3143581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid distributing apparatus
Assignee: Universal Oil Products Co
•
Filing: 1962-01-02
•
Granted: 1964-08-04
•
Expires: 1982-01-02
Abstract
No abstract record available.
Inventors
- 👤 John F Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:01
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/02; B01J8/04; B01J8/0492; B01J8/0278
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190011269A
Cited
DE866535C
Cited
US2494067A
Cited
US2639947A
Cited
US2681217A
Cited
US3016234A
Cited
US3051315A
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US3034730A
Cited
US3030032A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |