US2127791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for purifying rubber latex and like dispersions
Assignee: BRITISH RUBBER PROD RES
•
Filing: 1936-06-11
•
Granted: 1938-08-23
•
Expires: 1956-06-11
Abstract
No abstract record available.
Inventors
- 👤 Stevens Henry Potter
- 👤 Dyer Joseph William Ward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:21
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/24; B01D61/28; Y; Y10; Y10S; Y10S528/00; Y10S528/931; Y10S528/934; Y10S528/937
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1941-08-22 | 1942-02-21 | 1942-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-08-22 | 1946-02-21 | 1946-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-08-22 | 1950-02-21 | 1950-08-23 | $7700.00 | Window Closed / Lapsed |