US2431056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas impervious fabric
Assignee: Wingfoot Corp
•
Filing: 1945-11-15
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Granted: 1947-11-18
•
Expires: 1965-11-15
Abstract
No abstract record available.
Inventors
- 👤 Oscar W Loudenslager
- 👤 Joseph E Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:56
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/244; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31725; Y10T428/31739; Y10T428/31743; Y10T428/31855; Y10T428/31909; Y10T428/31928; Y10T442/00; Y10T442/20; Y10T442/2861; Y10T442/2893
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) | 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 |