US1699779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for improving tensile strength of fabric materials
Assignee: Westinghouse Electric Corp
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Filing: 1927-07-15
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Granted: 1929-01-22
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Expires: 1947-07-15
Abstract
No abstract record available.
Inventors
- 👤 Paul B Cochran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:39
CPC Classifications
F; F26; F26B; F26B13/00; F26B13/001
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) | 1932-01-22 | 1932-07-23 | 1933-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-01-22 | 1936-07-23 | 1937-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-01-22 | 1940-07-23 | 1941-01-22 | $7700.00 | Window Closed / Lapsed |