US2541812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floor processing machine
Assignee: Individual
•
Filing: 1947-10-30
•
Granted: 1951-02-13
•
Expires: 1967-10-30
Abstract
No abstract record available.
Inventors
- 👤 Walter S Finnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:33
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/4038; A47L11/02; A47L11/10; A47L11/14; A47L11/16; A47L11/162; A47L11/4063; A47L11/4069; A47L11/4075; A47L11/408; A47L11/4083; Y; Y10; Y10S; Y10S15/00; Y10S15/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US695479A
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US724057A
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US1164740A
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US1434109A
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US1493309A
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US1736446A
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US1829132A
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US1927226A
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US1830362A
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US1877951A
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US1898357A
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US2252269A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-12 | 1954-08-14 | 1955-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-12 | 1958-08-14 | 1959-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-12 | 1962-08-14 | 1963-02-13 | $7700.00 | Window Closed / Lapsed |