US2777680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for removing floor coverings
Assignee: JOHN W ROBB
•
Filing: 1950-04-17
•
Granted: 1957-01-15
•
Expires: 1970-04-17
Abstract
No abstract record available.
Inventors
- 👤 John F Robb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:01
CPC Classifications
B; B24; B24B; B24B7/00; B24B7/10; B24B7/18; B24B7/188; E; E04; E04G; E04G23/00; E04G23/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2232367A
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US2245544A
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US2345425A
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US2279454A
Cited
US2468839A
Cited
US2565841A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-15 | 1960-07-16 | 1961-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-15 | 1964-07-16 | 1965-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-15 | 1968-07-16 | 1969-01-15 | $7700.00 | Window Closed / Lapsed |