US1286951A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air-strainer.
Assignee: J I CASE THRESHING MACHINE Co
•
Filing: 1918-02-15
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Granted: 1918-12-10
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Expires: 1938-02-15
Abstract
No abstract record available.
Inventors
- 👤 David P Davies
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:18
CPC Classifications
B; B01; B01F; B01F33/00; B01F33/50; B01F33/503; Y; Y10; Y10S; Y10S55/00; Y10S55/27; Y10S55/28
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) | 1921-12-09 | 1922-06-10 | 1922-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1925-12-09 | 1926-06-10 | 1926-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1929-12-09 | 1930-06-10 | 1930-12-10 | $7700.00 | Window Closed / Lapsed |