US2319859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for the preparation of rubber compounds
Assignee: Individual
•
Filing: 1941-03-06
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Granted: 1943-05-25
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Expires: 1961-03-06
Abstract
No abstract record available.
Inventors
- 👤 Hale Andrew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:16
CPC Classifications
B; B29; B29B; B29B9/00; B29B9/02; B29B9/06; B29B9/065; B29B7/00; B29B7/30; B29B7/34; B29B7/38; B29B7/40; B29B7/42; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/395; B29C48/50; B29C48/505; B29C48/62; B29C48/78; B29C48/80; B29C48/83; B29C48/832; B29C48/834; B29C48/84; B29C48/845; B29C48/85; B29C48/03; Y; Y10; Y10S; Y10S100/00; Y10S100/903; Y10S100/904
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) | 1946-05-24 | 1946-11-23 | 1947-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-05-24 | 1950-11-23 | 1951-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-05-24 | 1954-11-23 | 1955-05-25 | $7700.00 | Window Closed / Lapsed |