US2686560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas injector
Assignee: United Carbon Co Inc
•
Filing: 1950-11-27
•
Granted: 1954-08-17
•
Expires: 1970-11-27
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Sweigart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:40
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A FLUID HYDROCARBON INJECTOR FOR USE IN PRODUCING CARBON BLACK COMPRISING A CONDUIT HAVING AN OPEN END HAVING A LARGE OPENING DIRECTED FORWARDLY ONLY FOR DISCHARGING A STREAM OF LIQUID HYDROCARBONS THEREFROM IN A CONCENTRATED FROM, A HOLLOW ANNULAR MEMBER COAXIALLY DISPOSED AROUN SAID CONDUIT AND SPACED REARWARDLY OF THE DISCHARGE END THEREOF, A CONDUIT FOR SUPPLYING A HYDROCARBON GAS TO THE INTERIOR OF SAID ANNULAR MEMBER, SAID ANNULAR MEMBER
Claim 2
Dependent Claim
70 words
A FLUID HYDROCARBON INJECTOR FOR USE IN PRODUCING CARBON BLACK COMPRISING A CONDUIT HAVING AN OPEN END HAVING A LARGE OPENING DIRECTED FORWARDLY ONLY FOR DISCHARGING A STREAM OF LIQUID HYDROCARBONS THEREFROM IN A CONCENTRATED FROM, A HOLLOW ANNULAR MEMBER COAXIALLY DISPOSED AROUN SAID CONDUIT AND SPACED REARWARDLY OF THE DISCHARGE END THEREOF, A CONDUIT FOR SUPPLYING A HYDROCARBON GAS TO THE INTERIOR OF SAID ANNULAR MEMBER, SAID ANNULAR MEMBER
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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) | 1957-08-16 | 1958-02-15 | 1958-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-16 | 1962-02-15 | 1962-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-16 | 1966-02-15 | 1966-08-17 | $7700.00 | Window Closed / Lapsed |