US2431028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized cyclized rubber compositions and sheet wrapping material coated therewith
Assignee: Wingfoot Corp
•
Filing: 1944-10-23
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Granted: 1947-11-18
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Expires: 1964-10-23
Abstract
No abstract record available.
Inventors
- 👤 Clarence M Carson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:31
CPC Classifications
C; C08; C08L; C08L15/00; C08L61/00; C08L61/34; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31707; Y10T428/31826; Y10T428/31841; Y10T428/31942; Y10T428/31949; Y10T428/31953; Y10T428/31964; Y10T428/31967
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-17 | 1951-05-19 | 1951-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-17 | 1955-05-19 | 1955-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-17 | 1959-05-19 | 1959-11-18 | $7700.00 | Window Closed / Lapsed |