US2417620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polishing apparatus for floors and similar surfaces
Assignee: Individual
•
Filing: 1944-12-22
•
Granted: 1947-03-18
•
Expires: 1964-12-22
Abstract
No abstract record available.
Inventors
- 👤 Gustave J Soderberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:16
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/4038; A47L11/02; A47L11/10; A47L11/14; A47L11/16; A47L11/164; A47L11/4063; A47L11/4069; A47L11/4072; A47L11/4075; Y; Y10; Y10S; Y10S15/00; Y10S15/10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17291; Y10T279/17316; Y10T279/17324; Y10T279/17333; Y10T279/17341; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32262; Y10T403/32319; Y10T403/32377; Y10T74/00; Y10T74/21; Y10T74/2193; Y10T74/2199
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1336078A
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US1677741A
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US1850731A
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US1979527A
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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) | 1950-03-17 | 1950-09-16 | 1951-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-17 | 1954-09-16 | 1955-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-17 | 1958-09-16 | 1959-03-18 | $7700.00 | Window Closed / Lapsed |