US3359074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polycondensation apparatus
Assignee: Monsanto Co
•
Filing: 1963-06-11
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Granted: 1967-12-19
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Expires: 1983-06-11
Abstract
No abstract record available.
Inventors
- 👤 Emerick J Dobo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:39
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/02; C08G69/04; B; B01; B01D; B01D3/00; B01D3/14; B01D3/16; B01D3/18; B01D3/20; B01J; B01J14/00; B01J19/00; B01J19/24; B01J19/2415; B01J19/242; C08G63/00; C08G63/78; C08G63/785; B01J2219/00; B01J2219/00049; B01J2219/00162; B01J2219/00164; B01J2219/00168; B01J2219/00182; Y; Y10; Y10S; Y10S261/00; Y10S261/72; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86348
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A POLYCONDENSATION SYSTEM COMPRISING A SINGLE, VERTICALLY EXTENDING COLUMN, SAID COLUMN BEING TRANSVERSELY PARTITIONED TO DEFINE, IN DESCENDING ORDER, A REACTOR CHAMBER, AN EVAPORATOR CHAMBER AND A FINISHER CHAMBER, EACH OF SAID CHAMBERS BEING FULLY ENCLOSED WITHIN SAID SINGLE COLUMN AND HAVING INLET AND OUTLET MEANS DISPOSED, RESPECTIVELY, AT THE UPPER AND LOWER END REGIONS, SAID EVAPORATOR CHAMBER FLUIDLY INTERCONNECTING SAID REACTOR CHAMBER WITH SAID FINISHER CHAMBR, CHAMBER LEVEL CONTROL MEANS DISPOSED ADACENT EACH OF THE LOWER, OUTLET ENDS OF SAID REACTOR AND EVAPORATOR CHAMBERS AND OPERATIVE TO CONTINUOUSLY MONITOR THE FLUID LEVELS WITHIN THE LOWER REGIONS OF SAID REACTOR AND EVAPORATOR CHAMBERS TO AUTOMATICALLY REGULATE DISCHARGE THEREFROM IN SUCH
Claim 2
Dependent Claim
110 words
A POLYCONDENSATION SYSTEM COMPRISING A SINGLE, VERTICALLY EXTENDING COLUMN, SAID COLUMN BEING TRANSVERSELY PARTITIONED TO DEFINE, IN DESCENDING ORDER, A REACTOR CHAMBER, AN EVAPORATOR CHAMBER AND A FINISHER CHAMBER, EACH OF SAID CHAMBERS BEING FULLY ENCLOSED WITHIN SAID SINGLE COLUMN AND HAVING INLET AND OUTLET MEANS DISPOSED, RESPECTIVELY, AT THE UPPER AND LOWER END REGIONS, SAID EVAPORATOR CHAMBER FLUIDLY INTERCONNECTING SAID REACTOR CHAMBER WITH SAID FINISHER CHAMBR, CHAMBER LEVEL CONTROL MEANS DISPOSED ADACENT EACH OF THE LOWER, OUTLET ENDS OF SAID REACTOR AND EVAPORATOR CHAMBERS AND OPERATIVE TO CONTINUOUSLY MONITOR THE FLUID LEVELS WITHIN THE LOWER REGIONS OF SAID REACTOR AND EVAPORATOR CHAMBERS TO AUTOMATICALLY REGULATE DISCHARGE THEREFROM IN SUCH
References Cited (Backward Citations)
US3157619A
Cited
US3250747A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-18 | 1971-06-19 | 1971-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-18 | 1975-06-19 | 1975-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-18 | 1979-06-19 | 1979-12-19 | $7700.00 | Window Closed / Lapsed |