Patent US5156222A successfully refreshed from Google Patents.
Patent US3653845A successfully refreshed from Google Patents.
US3653845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-supporting screen deck
Assignee: Universal Oil Products Co
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Filing: 1969-10-06
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Granted: 1972-04-04
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Expires: 1989-10-06
Abstract
Abstract A self-supporting, segmented, slotted deck having at least two screen segments that can be attached to each other along a support beam. In its preferred form the screen segments are of slotted construction, with the slots increasing in crosssectional area from the top side of the screen surface to the lower side.
Inventors
- 👤 Terrence D Moravec
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:53
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/30; B01J19/305; B01J47/00; B01J47/02; B01J47/022; B01J8/00; B01J8/008; B01J2208/00; B01J2208/00796; B01J2208/00884
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
18 words
The self-supporting deck of claim 1 further characterized in that said resulting deck is of a circular shape.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-04 | 1975-10-04 | 1976-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-04 | 1979-10-04 | 1980-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-04 | 1983-10-04 | 1984-04-04 | $7700.00 | Window Closed / Lapsed |