US3090774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
scoggin
Assignee: —
•
Filing: —
•
Granted: 1963-05-21
•
Expires: 1980-05-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:15
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/12; B; B01; B01D; B01D21/00; B01D21/26; B29; B29B; B29B17/00; B29B17/02; B29B2017/0213; B29B2017/0217; B29B2017/0237; B29B2017/0244; Y; Y10; Y10S; Y10S159/00; Y10S159/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
IN THE SEPARATION OF SOLID POLYMER FROM A SLURRY COMPRISING SAID SOLID POLYMER HAVING A DENSITY LESS THAN THAT OF WATER, A LIQUID DILUENT OF LOWER DENSITY THAN THE DENSITIES OF SAID POLYMER AND LIQUID WATER, THE IMPROVEMENT COMPRISING PASSING SAID SLURRY INTO A FIRST SEPARATION ZONE HAVING AN UPPER END PORTION, AN OPEN LOWER END PORTION, AND A PERFORATE ZONE INTERMEDIATE SAID UPPER END PORTION AND SAID LOWER END PORTION AND AT A LEVEL BELOW AND SPACED FROM SAID PERFORATE ZONE, SEPARATING SAID LIQUID DILUENT FROM SAID POLYMER BY PASSING SAID LIQUID DILUENT UPWARDLY THROUGH SAID PERFORATE ZONE AND RETAINING SAID POLYMER ADJACENT THE UNDERSIDE THEREOF, WITH-
Claim 2
Dependent Claim
108 words
IN THE SEPARATION OF SOLID POLYMER FROM A SLURRY COMPRISING SAID SOLID POLYMER HAVING A DENSITY LESS THAN THAT OF WATER, A LIQUID DILUENT OF LOWER DENSITY THAN THE DENSITIES OF SAID POLYMER AND LIQUID WATER, THE IMPROVEMENT COMPRISING PASSING SAID SLURRY INTO A FIRST SEPARATION ZONE HAVING AN UPPER END PORTION, AN OPEN LOWER END PORTION, AND A PERFORATE ZONE INTERMEDIATE SAID UPPER END PORTION AND SAID LOWER END PORTION AND AT A LEVEL BELOW AND SPACED FROM SAID PERFORATE ZONE, SEPARATING SAID LIQUID DILUENT FROM SAID POLYMER BY PASSING SAID LIQUID DILUENT UPWARDLY THROUGH SAID PERFORATE ZONE AND RETAINING SAID POLYMER ADJACENT THE UNDERSIDE THEREOF, WITH-
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) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |