Patent US1884612A successfully refreshed from Google Patents.
Patent US1694258A successfully refreshed from Google Patents.
US1694258A
Expired / Lapsed
US
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Process of manufacturing imitation leather
Assignee: Seiberling Rubber Co
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Filing: 1923-05-24
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Granted: 1928-12-04
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Expires: 1943-05-24
Abstract
No abstract record available.
Inventors
- 👤 Hartong Robert Clifford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:46
CPC Classifications
D; D06; D06N; D06N3/00; Y; Y10; Y10S; Y10S428/00; Y10S428/904; Y10T; Y10T442/00; Y10T442/20; Y10T442/2041; Y10T442/2049; Y10T442/2057; Y10T442/2066; Y10T442/2369; Y10T442/2738; Y10T442/2746
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) | 1931-12-04 | 1932-06-04 | 1932-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-12-04 | 1936-06-04 | 1936-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-12-04 | 1940-06-04 | 1940-12-04 | $7700.00 | Window Closed / Lapsed |