Patent US1423525A successfully refreshed from Google Patents.
US1423525A
Expired / Lapsed
US
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Process for treating rubber-containing latex
Assignee: General Rubber LLC
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Filing: 1920-01-16
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Granted: 1922-07-25
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Expires: 1940-01-16
Abstract
No abstract record available.
Inventors
- 👤 Hopkinson Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:25
CPC Classifications
B; B29; B29B; B29B13/00; B29B13/06; B29K; B29K2021/00; Y; Y10; Y10S; Y10S528/00; Y10S528/931; Y10S528/934; Y10S528/936
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) | 1925-07-24 | 1926-01-23 | 1926-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-07-24 | 1930-01-23 | 1930-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-07-24 | 1934-01-23 | 1934-07-25 | $7700.00 | Window Closed / Lapsed |