US2677533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Agitator for mixing machines
Assignee: Clearfield Machine Co
•
Filing: 1950-07-01
•
Granted: 1954-05-04
•
Expires: 1970-07-01
Abstract
No abstract record available.
Inventors
- 👤 Walter E Mcmurray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:46
CPC Classifications
B; B02; B02C; B02C15/00; B02C15/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US548072A
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US563145A
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US725521A
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US757433A
Cited
FR383650A
Cited
US1611389A
Cited
US2031149A
Cited
US2179970A
Cited
US2270164A
Cited
US2316562A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-03 | 1957-11-02 | 1958-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-03 | 1961-11-02 | 1962-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-03 | 1965-11-02 | 1966-05-04 | $7700.00 | Window Closed / Lapsed |