Patent US917508A successfully refreshed from Google Patents.
Patent US2664281A successfully refreshed from Google Patents.
US2664281A
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Machine for cutting, cleaning, grooving, and treating surfaces
Assignee: Tennant Co
•
Filing: 1949-08-27
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Granted: 1953-12-29
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Expires: 1969-08-27
Abstract
No abstract record available.
Inventors
- 👤 Luksch Andreas
- 👤 Hale Lloyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:52
CPC Classifications
E; E04; E04G; E04G23/00; E04G23/02; E04G23/0203; B; B28; B28D; B28D1/00; B28D1/18; B28D1/181; E01; E01C; E01C23/00; E01C23/06; E01C23/09; E01C23/0906; E01C23/0926; E01C23/0933; Y; Y10; Y10T; Y10T29/00; Y10T29/45; Y10T29/4528
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US481380A
Cited
US743307A
Cited
US1629818A
Cited
US1758647A
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US1795109A
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DE530654C
Cited
GB366013A
Cited
US1964746A
Cited
US2009500A
Cited
GB551996A
Cited
US2336487A
Cited
US2468336A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-28 | 1957-06-29 | 1957-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-28 | 1961-06-29 | 1961-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-28 | 1965-06-29 | 1965-12-29 | $7700.00 | Window Closed / Lapsed |