US3228530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Distribution means for separation and clarification tanks
Assignee: Rex Chainbelt Inc
•
Filing: 1965-02-01
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Granted: 1966-01-11
•
Expires: 1985-02-01
Abstract
No abstract record available.
Inventors
- 👤 Gilbert W Quast
- 👤 Geinopolos Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:11
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/02; B01D21/04; B01D21/06; B01D21/0039; B01D21/0042; B01D21/24; B01D21/2405; B01D21/2427; B01D21/2444; B01D21/245
Claims Analysis
Total Claims: 0
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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) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |