US3154255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of reclaiming cellulsoe fibers from thermoplastic coated cellulosic webs
Assignee: Amberley Co
•
Filing: 1961-03-01
•
Granted: 1964-10-27
•
Expires: 1981-03-01
Abstract
No abstract record available.
Inventors
- 👤 David L Schulman
- 👤 Jr George E Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:46
CPC Classifications
B; B29; B29B; B29B17/00; B29B17/02; D; D21; D21B; D21B1/00; D21B1/04; D21B1/12; D21B1/30; D21B1/32; D21B1/322; D21B1/34; D21B1/345; D21D; D21D5/00; D21D5/02; D21D5/023; D21D5/026; B29B17/04; B29B2017/0424; B29B2017/048; B29K; B29K2001/00; B29K2101/00; B29K2101/12; B29K2711/00; B29K2711/12; B29K2711/123; B29L; B29L2009/00; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/62; Y02W30/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
IN THE PROCESS OF SEPARATING THERMOPLASTIC FILM FROM THE CELLULOSE SUBSTRATA OF THERMOPLASTIC COATED BROKE, THE STEPS OF MIXING IN A SUITABLE RECEPTACLE, DRY BROKE AND WATER, CONTINUOUSLY AND VIOLENTLY SUBJECTING THE BROKE IN SAID RECEPTACLE TO HYDRAULIC SHEAR BY VIOLENTLY AND CONTINUOUSLY AGITATING THE WATER AND THE BROKE THEREIN TO BREAK THE BOND BETWEEN THE SUBSTRATA AND THE FILM AND TO STRIP THE CELLULOSE FIBERS FROM THE FILM AND MIX SAID FIBERS WITH SAID WATER TO FORM A PULP THEREWITH, CONTINUOUSLY ADDING WATER TO THE PULP AND STRIPPED FILM MIXTURE WHILE SUBJECTING SAID MIXTURE TO A SCREENING ACTION FOR PASSING THE PULP FROM THE MIXTURE WHILE RETAINING ALL OF THE UNSTRIPPED BROKE AND SUBSTANTIALLY ALL OF THE STRIPPED FILM FROM THE PULP, AND THEN SUBJECTING SAID INITIALLY SCREENED PULP TO A CENTRIFUGAL SCREENING ACTION FOR REMOVING THEREFROM ANY REMAINING FILM WHICH MAY HAVE PASSED IN THE FIRST SCREENING.
Claim 2
Dependent Claim
149 words
IN THE PROCESS OF SEPARATING THERMOPLASTIC FILM FROM THE CELLULOSE SUBSTRATA OF THERMOPLASTIC COATED BROKE, THE STEPS OF MIXING IN A SUITABLE RECEPTACLE, DRY BROKE AND WATER, CONTINUOUSLY AND VIOLENTLY SUBJECTING THE BROKE IN SAID RECEPTACLE TO HYDRAULIC SHEAR BY VIOLENTLY AND CONTINUOUSLY AGITATING THE WATER AND THE BROKE THEREIN TO BREAK THE BOND BETWEEN THE SUBSTRATA AND THE FILM AND TO STRIP THE CELLULOSE FIBERS FROM THE FILM AND MIX SAID FIBERS WITH SAID WATER TO FORM A PULP THEREWITH, CONTINUOUSLY ADDING WATER TO THE PULP AND STRIPPED FILM MIXTURE WHILE SUBJECTING SAID MIXTURE TO A SCREENING ACTION FOR PASSING THE PULP FROM THE MIXTURE WHILE RETAINING ALL OF THE UNSTRIPPED BROKE AND SUBSTANTIALLY ALL OF THE STRIPPED FILM FROM THE PULP, AND THEN SUBJECTING SAID INITIALLY SCREENED PULP TO A CENTRIFUGAL SCREENING ACTION FOR REMOVING THEREFROM ANY REMAINING FILM WHICH MAY HAVE PASSED IN THE FIRST SCREENING.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-27 | 1968-04-27 | 1968-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-27 | 1972-04-27 | 1972-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-27 | 1976-04-27 | 1976-10-27 | $7700.00 | Window Closed / Lapsed |