Patent US1646825A successfully refreshed from Google Patents.
US1646825A
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Fibrous article and method for producing such article
Assignee: AT&T Inc
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Filing: 1923-02-03
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Granted: 1927-10-25
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Expires: 1943-02-03
Abstract
No abstract record available.
Inventors
- 👤 Kochendorfer Frkderic Shields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:26
CPC Classifications
D; D21; D21J; D21J3/00; B; B29; B29C; B29C48/00; B29C48/022; B29C48/03; B29C48/06; B29C48/09; Y; Y10; Y10S; Y10S118/00; Y10S118/18; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23957; Y10T428/23964; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/31504; Y10T428/31511; Y10T428/31529
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) | 1930-10-24 | 1931-04-25 | 1931-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-10-24 | 1935-04-25 | 1935-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-10-24 | 1939-04-25 | 1939-10-25 | $7700.00 | Window Closed / Lapsed |