Patent US2862224A successfully refreshed from Google Patents.
US2862224A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floor surfacing machine
Assignee: Tennant Co
•
Filing: 1955-10-20
•
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 20:10
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
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US70487A
Cited
US852087A
Cited
FR561853A
Cited
FR587790A
Cited
US1900331A
Cited
US1849663A
Cited
DE587987C
Cited
US2085700A
Cited
US2288115A
Cited
US2472895A
Cited
US2568699A
Cited
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 |