Patent US4346389A successfully refreshed from Google Patents.
Patent US3030742A successfully refreshed from Google Patents.
US3030742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sanding pad
Assignee: EDWARD C CROUL
•
Filing: 1959-06-03
•
Granted: 1962-04-24
•
Expires: 1979-06-03
Abstract
No abstract record available.
Inventors
- 👤 William T Costello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:08
CPC Classifications
B; B24; B24D; B24D15/00; B24D15/04; A; A47; A47L; A47L13/00; A47L13/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-23 | 1965-10-23 | 1966-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-23 | 1969-10-23 | 1970-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-23 | 1973-10-23 | 1974-04-24 | $7700.00 | Window Closed / Lapsed |