Patent US1843349A successfully refreshed from Google Patents.
US1843349A
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Artificial leather fabrication
Assignee: Brown Co
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Filing: 1929-09-30
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Granted: 1932-02-02
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Expires: 1949-09-30
Abstract
No abstract record available.
Inventors
- 👤 Wallace B Van Arsdel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:33
CPC Classifications
D; D06; D06N; D06N3/00; Y; Y10; Y10S; Y10S428/00; Y10S428/904; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1052; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24438; Y10T428/24479; Y10T428/24562; Y10T428/24942; Y10T428/2495; Y10T428/249921; Y10T428/249953; Y10T428/249981; Y10T428/31504; Y10T428/31826; Y10T428/3183; Y10T428/31841
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) | 1935-02-01 | 1935-08-03 | 1936-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-02-01 | 1939-08-03 | 1940-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-02-01 | 1943-08-03 | 1944-02-02 | $7700.00 | Window Closed / Lapsed |