US2054870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impregnating material for shoe linings
Assignee: Roche Diagnostics GmbH
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Filing: 1933-02-11
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Granted: 1936-09-22
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Expires: 1953-02-11
Abstract
No abstract record available.
Inventors
- 👤 Stelkens Willy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:53
CPC Classifications
C; C08; C08L; C08L1/00; C08L1/08; C08L1/16; C08L1/18; A; A43; A43B; A43B1/00; A43B23/00; A43B23/02; A43B23/0205; A43B23/0215; A43B23/08; A43B23/081; A43B23/086; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24298; Y10T428/24322; Y10T428/24331; Y10T428/25; Y10T428/256; Y10T442/00; Y10T442/20; Y10T442/2361
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) | 1939-09-22 | 1940-03-23 | 1940-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-09-22 | 1944-03-23 | 1944-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-09-22 | 1948-03-23 | 1948-09-22 | $7700.00 | Window Closed / Lapsed |