US3104503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sander plate assembly for portable sanding tools
Assignee: Singer Co
•
Filing: 1961-01-09
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Granted: 1963-09-24
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Expires: 1981-01-09
Abstract
No abstract record available.
Inventors
- 👤 Joseph P Yelpo
- 👤 Joseph J Romano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:33
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/02; A47L11/10; A47L11/12; B; B24; B24D; B24D15/00; B24D15/02; B24D15/023
Claims Analysis
Total Claims: 0
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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) | 1966-09-23 | 1967-03-25 | 1967-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-23 | 1971-03-25 | 1971-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-23 | 1975-03-25 | 1975-09-24 | $7700.00 | Window Closed / Lapsed |