Patent US2465953A successfully refreshed from Google Patents.
US2465953A
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US
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Melting apparatus for bituminous materials
Assignee: AEROIL PROD
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Filing: 1945-08-21
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Granted: 1949-03-29
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Expires: 1965-08-21
Abstract
No abstract record available.
Inventors
- 👤 Wollner Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:08
CPC Classifications
C; C10; C10C; C10C3/00; C10C3/10; C10C3/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US147423A
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US793472A
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US929978A
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US1189104A
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US2108784A
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US2185594A
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US2175886A
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US2270726A
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US2290742A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-28 | 1952-09-27 | 1953-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-28 | 1956-09-27 | 1957-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-28 | 1960-09-27 | 1961-03-29 | $7700.00 | Window Closed / Lapsed |