Patent US988707A successfully refreshed from Google Patents.
US988707A
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US
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Cleaning and separating machine.
Assignee: HEDFELDT Co
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Filing: 1903-05-04
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Granted: 1911-04-04
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Expires: 1923-05-04
Abstract
No abstract record available.
Inventors
- 👤 Axel T Hedfeldt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:47
CPC Classifications
F; F26; F26B; F26B15/00; F26B15/10; F26B15/20; F26B15/22; A; A01; A01D; A01D41/00; A01D41/12; A01D41/1243
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) | 1914-04-03 | 1914-10-03 | 1915-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1918-04-03 | 1918-10-03 | 1919-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1922-04-03 | 1922-10-03 | 1923-04-04 | $7700.00 | Window Closed / Lapsed |