US2963059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus to smooth floorings
Assignee: Individual
•
Filing: 1957-10-17
•
Granted: 1960-12-06
•
Expires: 1977-10-17
Abstract
No abstract record available.
Inventors
- 👤 Grub Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:31
CPC Classifications
E; E04; E04F; E04F21/00; E04F21/20; E04F21/24; E04F21/245
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US598364A
Cited
DE540716C
Cited
DE558500C
Cited
US1387027A
Cited
FR773457A
Cited
US2306470A
Cited
US2517374A
Cited
US2635653A
Cited
US2725907A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |