Patent US2444801A successfully refreshed from Google Patents.
US2444801A
Expired / Lapsed
US
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Creaming of synthetic rubber latices
Assignee: Standard Oil Development Co
•
Filing: 1944-09-30
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Granted: 1948-07-06
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Expires: 1964-09-30
Abstract
No abstract record available.
Inventors
- 👤 Arundale Erving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:53
CPC Classifications
C; C08; C08C; C08C1/00; C08C1/02; C08C1/075; C08C1/08; Y; Y10; Y10S; Y10S260/00; Y10S260/22; Y10S528/00; Y10S528/931; Y10S528/934; Y10S528/937
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB472912A
Cited
GB527219A
Cited
GB525656A
Cited
US2326956A
Cited
US2357861A
Cited
US2378695A
Cited
US2393261A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-06 | 1952-01-05 | 1952-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-06 | 1956-01-05 | 1956-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-06 | 1960-01-05 | 1960-07-06 | $7700.00 | Window Closed / Lapsed |