US3080800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heated asphalt rollers
Assignee: Individual
•
Filing: 1960-05-17
•
Granted: 1963-03-12
•
Expires: 1980-05-17
Abstract
No abstract record available.
Inventors
- 👤 Gus E Malzahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:19
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/22; E01C19/23; E01C19/238; E01C19/24
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
115 words
A GAS BURNER FOR CYLINDRICAL ASPHALT ROLLER ROTATABLY MOUNTED ON AXIAL STUB SHAFTS FIXED TO A ROLLER HOOD, COMPRISING A TUBULAR MEMBER COAXIALLY MOUNTED TO ONE END OF SAID ROLLER, A FLAME DIRECTING MEMBER CONNECTED TO SAID TUBULAR MEMBER AT AN INNER END THEREOF, A VENTURI NOZZLE COAXIALLY MOUNTED TO AND WITHIN SAID TUBULAR MEMBER HAVING AN INNER END SPACED FROM SAID FLAME DIRECTING MEMBER AND A GAS INLET NOZZLE MOUNTED IN ONE OF THE AXIAL STUB SHAFTS ON WHICH THE ROLLER IS JOURNALED, COAXIALLY EXTENDING INTO SAID VENTURI NOZZLE, EXHAUST PASSAGES DISPOSED IN ONE END OF SAID ROLLER, AND SAID ONE STUB SHAFT AND GAS NOZZLE PROJECTING INTO AND ROTATABLY MOUNTING SAID VENTURI NOZZLE.
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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) | 1966-03-11 | 1966-09-10 | 1967-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-11 | 1970-09-10 | 1971-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-11 | 1974-09-10 | 1975-03-12 | $7700.00 | Window Closed / Lapsed |