Patent US2461004A successfully refreshed from Google Patents.
US2461004A
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Treatment of hydrocarbon resins and products thereof
Assignee: United Gas Improvement Co
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Filing: 1944-06-20
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Granted: 1949-02-08
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Expires: 1964-06-20
Abstract
No abstract record available.
Inventors
- 👤 Frank J Soday
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:31
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/50; Y; Y10; Y10S; Y10S585/00; Y10S585/919; Y10S585/921; Y10S585/924; Y10S585/925
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1640975A
Cited
US1703950A
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US2084012A
Cited
US2150641A
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US2248512A
Cited
US2387259A
Cited
US2387237A
Cited
US2359212A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-08 | 1952-08-09 | 1953-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-08 | 1956-08-09 | 1957-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-08 | 1960-08-09 | 1961-02-08 | $7700.00 | Window Closed / Lapsed |