Patent US1885154A successfully refreshed from Google Patents.
US1885154A
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Process of producing concentrated and purified rubber latex
Assignee: De Laval Separator Co
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Filing: 1930-08-08
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Granted: 1932-11-01
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Expires: 1950-08-08
Abstract
No abstract record available.
Inventors
- 👤 George J Strezynski
- 👤 Norman A Fraser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:07
CPC Classifications
C; C08; C08C; C08C1/00; C08C1/02; C08C1/075; C08C1/10; Y; Y10; Y10S; Y10S528/00; Y10S528/931; Y10S528/934; Y10S528/937
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1935-11-01 | 1936-05-02 | 1936-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-11-01 | 1940-05-02 | 1940-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-11-01 | 1944-05-02 | 1944-11-01 | $7700.00 | Window Closed / Lapsed |