US1839950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treating rubber and products obtained thereby
Assignee: Uniroyal Chemical Co Inc
•
Filing: 1927-02-15
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Granted: 1932-01-05
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Expires: 1947-02-15
Abstract
No abstract record available.
Inventors
- 👤 Sidney M Cadwell
- 👤 Meuser Ludwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:01
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/315; C08K3/00; C08K3/28; C08K3/30; C08K5/36
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) | 1935-01-04 | 1935-07-06 | 1936-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-01-04 | 1939-07-06 | 1940-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-01-04 | 1943-07-06 | 1944-01-05 | $7700.00 | Window Closed / Lapsed |