US2201706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of coating the blades of air propellers
Assignee: Individual
•
Filing: 1937-11-02
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Granted: 1940-05-21
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Expires: 1957-11-02
Abstract
No abstract record available.
Inventors
- 👤 Sukohl Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:37
CPC Classifications
B; B29; B29C; B29C63/00; B29C63/18; B29C63/20; B29C63/182; B29C63/22; B29L; B29L2031/00; B29L2031/08; B29L2031/087; Y; Y10; Y10S; Y10S264/00; Y10S264/50; Y10S29/00; Y10S29/044; Y10T; Y10T29/00; Y10T29/49; Y10T29/49805; Y10T29/49826; Y10T29/49863; Y10T29/4987; Y10T29/53; Y10T29/53657
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) | 1943-05-21 | 1943-11-20 | 1944-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-05-21 | 1947-11-20 | 1948-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-05-21 | 1951-11-20 | 1952-05-21 | $7700.00 | Window Closed / Lapsed |