Patent US3326453A successfully refreshed from Google Patents.
US2576995A
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US
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Agitating and scraping mechanism
Assignee: Individual
•
Filing: 1949-06-28
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Granted: 1951-12-04
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Expires: 1969-06-28
Abstract
No abstract record available.
Inventors
- 👤 Carvel Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:07
CPC Classifications
A; A23; A23G; A23G9/00; A23G9/04; A23G9/14; A23G9/16; A23G9/22; A23G9/224
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2063065A
Cited
US1954146A
Cited
US2036217A
Cited
US2023607A
Cited
US2306602A
Cited
US2402931A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-03 | 1955-06-04 | 1955-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-03 | 1959-06-04 | 1959-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-03 | 1963-06-04 | 1963-12-04 | $7700.00 | Window Closed / Lapsed |