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US1801666A
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Gas-impervious sheet material and method of making the same
Assignee: Goodrich Corp
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Filing: 1925-06-26
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Granted: 1931-04-21
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Expires: 1945-06-26
Abstract
No abstract record available.
Inventors
- 👤 William C Geer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:54
CPC Classifications
B; B64; B64B; B64B1/00; B64B1/58; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31707; Y10T428/31826; Y10T428/31841; Y10T442/00; Y10T442/30; Y10T442/3382; Y10T442/3415; Y10T442/3447
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) | 1934-04-20 | 1934-10-20 | 1935-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-04-20 | 1938-10-20 | 1939-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-04-20 | 1942-10-20 | 1943-04-21 | $7700.00 | Window Closed / Lapsed |