US3540160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface finishing device
Assignee: Individual
•
Filing: 1967-01-31
•
Granted: 1970-11-17
•
Expires: 1987-01-31
Abstract
No abstract record available.
Inventors
- 👤 Antonio De Rose
- 👤 George De Rose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:38
CPC Classifications
B; B24; B24D; B24D15/00; B24D13/00; B24D13/14; B24D15/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190303227A
Cited
US1069329A
Cited
AU1895129A
Cited
US2040599A
Cited
GB397160A
Cited
US2155037A
Cited
US2950584A
Cited
US3030742A
Cited
US3121298A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-16 | 1974-05-18 | 1974-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-16 | 1978-05-18 | 1978-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-16 | 1982-05-18 | 1982-11-17 | $7700.00 | Window Closed / Lapsed |