US2496113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heater for melting bituminous material and for preventing flashing of vapors given off thereby
Assignee: Individual
•
Filing: 1947-06-25
•
Granted: 1950-01-31
•
Expires: 1967-06-25
Abstract
No abstract record available.
Inventors
- 👤 Wollner Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:48
CPC Classifications
C; C10; C10C; C10C3/00; C10C3/10; C10C3/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US15884A
Cited
US227945A
Cited
US1307521A
Cited
US1542653A
Cited
US1514252A
Cited
US1698015A
Cited
US2263880A
Cited
US2290742A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-30 | 1953-08-01 | 1954-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-30 | 1957-08-01 | 1958-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-30 | 1961-08-01 | 1962-01-31 | $7700.00 | Window Closed / Lapsed |