US3034867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous trinitrotoluene manufacture
Assignee: Chematur AB
•
Filing: 1956-02-07
•
Granted: 1962-05-15
•
Expires: 1976-02-07
Abstract
No abstract record available.
Inventors
- 👤 Samuelsen Eirik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:16
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/18; B01J14/00; C; C07; C07B; C07B43/00; C07B43/02; C07C; C07C201/00; C07C201/06; C07C201/08; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00076; B01J2219/00083; B01J2219/18; B01J2219/182; B01J2219/185
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
APPARATUS FOR NITRATION OF TOLUENCE AND NITROTOLUENES IN A SERIES OF UNITS EACH CONSISTING OF REACTOR AND SEPARATOR, THE OUTLET FROM THE REACTOR CONNECTED WITH THE INLET OF THE SEPARATOR, FEEDING MEANS TO FEED NITROBODY AND NITRATING ACID IN COUNTERCURRENT THROUGH THE SYSTEEM, THE SEPARATOR HAVING AN OUTLET BETWEEN THE TOP AND BOTTOM THEREOF FOR PARTLY SEPARATED EMULSION OF NITROBODY AND ACID, AND RECYCLING MEANS TO RETURN PARTLY SEPARATED EMULSION OF NITROBODY AND ACID FROM SAID OUTLET FROM THE SEPARATOR TO REACTOR IN AT LEAST ONE UNIT OF THE SERIES.
Claim 2
Dependent Claim
90 words
APPARATUS FOR NITRATION OF TOLUENCE AND NITROTOLUENES IN A SERIES OF UNITS EACH CONSISTING OF REACTOR AND SEPARATOR, THE OUTLET FROM THE REACTOR CONNECTED WITH THE INLET OF THE SEPARATOR, FEEDING MEANS TO FEED NITROBODY AND NITRATING ACID IN COUNTERCURRENT THROUGH THE SYSTEEM, THE SEPARATOR HAVING AN OUTLET BETWEEN THE TOP AND BOTTOM THEREOF FOR PARTLY SEPARATED EMULSION OF NITROBODY AND ACID, AND RECYCLING MEANS TO RETURN PARTLY SEPARATED EMULSION OF NITROBODY AND ACID FROM SAID OUTLET FROM THE SEPARATOR TO REACTOR IN AT LEAST ONE UNIT OF THE SERIES.
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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) | 1965-05-14 | 1965-11-13 | 1966-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-14 | 1969-11-13 | 1970-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-14 | 1973-11-13 | 1974-05-15 | $7700.00 | Window Closed / Lapsed |