Patent US2771689A successfully refreshed from Google Patents.
US2771689A
Expired / Lapsed
US
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Removal of water from solid polymers
Assignee: Standard Oil Co
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Filing: 1953-03-26
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Granted: 1956-11-27
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Expires: 1973-03-26
Abstract
No abstract record available.
Inventors
- 👤 Jr Richard S Bettes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:26
CPC Classifications
B; B29; B29B; B29B13/00; B29B13/06; Y; Y10; Y10S; Y10S159/00; Y10S159/10; Y10S159/23
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
THE PROCESS OF REMOVING PHYSICALLY BOUND WATER FROM A SOLID, WATER-LADEN, HYDROCARBON POLYMER WHICH COMPRISES PASSING SAID WATER-LADEN POLYMER BETWEEN TWO SMOOTH COUNTER-ROTATING, HORIZONTALLY DISPOSED PARALLEL ROLLS, MAINTAINING THE DISTANCE BETWEEN SAID ROLLS FROM ABOUT 0.001 TO ABOUT 0.010 INCH, MAINTAINING ONE OF SAID ROLLS COOL, AT A TEMPERATURE BETWEEN ABOUT 35* F. AND ABOUT 80* F., AND MAINTAINING THE OTHER OF SAID ROLLS HOT, AT A TEMPERATURE BETWEEN ABOUT 150* F., AND ABOUT 225* F. WHEREBY WATER IS TRANSFERRED FROM THE POLYMER LAYER TO THE COOL ROLL AND THE THIN POLYMER LAYER ADHERES TO
Claim 2
Dependent Claim
95 words
THE PROCESS OF REMOVING PHYSICALLY BOUND WATER FROM A SOLID, WATER-LADEN, HYDROCARBON POLYMER WHICH COMPRISES PASSING SAID WATER-LADEN POLYMER BETWEEN TWO SMOOTH COUNTER-ROTATING, HORIZONTALLY DISPOSED PARALLEL ROLLS, MAINTAINING THE DISTANCE BETWEEN SAID ROLLS FROM ABOUT 0.001 TO ABOUT 0.010 INCH, MAINTAINING ONE OF SAID ROLLS COOL, AT A TEMPERATURE BETWEEN ABOUT 35* F. AND ABOUT 80* F., AND MAINTAINING THE OTHER OF SAID ROLLS HOT, AT A TEMPERATURE BETWEEN ABOUT 150* F., AND ABOUT 225* F. WHEREBY WATER IS TRANSFERRED FROM THE POLYMER LAYER TO THE COOL ROLL AND THE THIN POLYMER LAYER ADHERES TO
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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) | 1959-11-27 | 1960-05-28 | 1960-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-27 | 1964-05-28 | 1964-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-27 | 1968-05-28 | 1968-11-27 | $7700.00 | Window Closed / Lapsed |