US2638381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impulse liquid agitator
Assignee: Individual
•
Filing: 1950-03-03
•
Granted: 1953-05-12
•
Expires: 1970-03-03
Abstract
No abstract record available.
Inventors
- 👤 Dewey M Paxton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:09
CPC Classifications
B; B05; B05B; B05B12/00; B05B12/02; B05B12/06; B05B1/00; B05B1/02; B05B1/08; B05B1/083; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2564; Y10T137/2567; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7929
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2172556A
Cited
US1862583A
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US1855457A
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US1876355A
Cited
US1893457A
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US1882215A
Cited
US1939836A
Cited
US2222516A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-11 | 1956-11-10 | 1957-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-11 | 1960-11-10 | 1961-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-11 | 1964-11-10 | 1965-05-12 | $7700.00 | Window Closed / Lapsed |