Patent US2978719A successfully refreshed from Google Patents.
US2978719A
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Mobile floor treating machine
Assignee: Nilfisk Inc
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Filing: 1957-12-30
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Granted: 1961-04-11
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Expires: 1977-12-30
Abstract
No abstract record available.
Inventors
- 👤 Daniel A Arones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:45
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/4038; A47L11/02; A47L11/10; A47L11/14; A47L11/16; A47L11/4052; A47L11/4055; A47L11/4058; A47L11/4063; A47L11/4066; A47L11/4069; A47L11/4075
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1020125A
Cited
US1466989A
Cited
US1591682A
Cited
US1979797A
Cited
US2088650A
Cited
US2317843A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |