US2862224A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floor surfacing machine
Assignee: Tennant Co
•
Filing: 1955-10-20
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Granted: 1958-12-02
•
Expires: 1975-10-20
Abstract
No abstract record available.
Inventors
- 👤 Albert S Swanson
- 👤 Harlie J Kimmerle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:59
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/02; A47L11/20; A47L11/204; A47L11/4036; A47L11/4041; A47L11/4063; A47L11/4069; A47L11/4077; A47L11/408; A47L5/00; A47L5/12; A47L5/22; A47L5/28; A47L5/30; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0886; Y10T292/0887; Y10T292/0891
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US70487A
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US852087A
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FR561853A
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FR587790A
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US1900331A
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US1849663A
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DE587987C
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US2085700A
Cited
US2288115A
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US2472895A
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US2568699A
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GB673613A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-01 | 1962-06-02 | 1962-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-01 | 1966-06-02 | 1966-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-01 | 1970-06-02 | 1970-12-02 | $7700.00 | Window Closed / Lapsed |