Patent US2565504A successfully refreshed from Google Patents.
Patent US2384872A successfully refreshed from Google Patents.
US2384872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube cleaner motor
Assignee: Elliott Co
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Filing: 1942-07-09
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Granted: 1945-09-18
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Expires: 1962-07-09
Abstract
No abstract record available.
Inventors
- 👤 Virgil H Baker
- 👤 Paul T Keebler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:14
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/02; B08; B08B; B08B9/00; B08B9/02; B08B9/027; B08B9/04; B08B9/043; B08B9/047; B08B9/049; B08B9/051
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) | 1948-09-17 | 1949-03-19 | 1949-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-09-17 | 1953-03-19 | 1953-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-09-17 | 1957-03-19 | 1957-09-18 | $7700.00 | Window Closed / Lapsed |