Patent US931121A successfully refreshed from Google Patents.
US931121A
Expired / Lapsed
US
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Process of extracting rubber-like gum from its vegetable sources.
Assignee: CONTINENTAL RUBBER Co
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Filing: 1909-01-15
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Granted: 1909-08-17
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Expires: 1929-01-15
Abstract
No abstract record available.
Inventors
- 👤 Felix Hermann Hunicke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:30
CPC Classifications
C; C08; C08C; C08C1/00; C08C1/02; C08J; C08J2321/00; Y; Y10; Y10S; Y10S241/00; Y10S241/31; Y10S528/00; Y10S528/931
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) | 1912-08-16 | 1913-02-15 | 1913-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-08-16 | 1917-02-15 | 1917-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-08-16 | 1921-02-15 | 1921-08-17 | $7700.00 | Window Closed / Lapsed |