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US2476609A
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US
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Manufacture of condensation products
Assignee: CONSOLIDATED ROYAL CHEMICAL CORP
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Filing: 1946-02-20
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Granted: 1949-07-19
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Expires: 1966-02-20
Abstract
No abstract record available.
Inventors
- 👤 Louis L Lerner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:05
CPC Classifications
C; C07; C07C; C07C41/00; C07C41/60; C08; C08G; C08G65/00; C08G65/02; C08G65/32; C08G65/329; C08G65/331; C08G65/332; C08G65/3322; C11; C11C; C11C3/00; C11C3/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1970578A
Cited
US2185969A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-18 | 1953-01-17 | 1953-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-18 | 1957-01-17 | 1957-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-18 | 1961-01-17 | 1961-07-19 | $7700.00 | Window Closed / Lapsed |