Patent US2944271A successfully refreshed from Google Patents.
US2944271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pot cleaning devices
Assignee: FREMLEE DEV CORP
•
Filing: 1957-11-18
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Granted: 1960-07-12
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Expires: 1977-11-18
Abstract
No abstract record available.
Inventors
- 👤 Elmer C Foster
- 👤 Frances O Foster
- 👤 Foster Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:40
CPC Classifications
A; A47; A47L; A47L17/00; A47L17/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1317523A
Cited
US1138926A
Cited
US1229401A
Cited
US1414781A
Cited
US1550187A
Cited
US1620591A
Cited
US1942689A
Cited
US2073124A
Cited
US2292712A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |