US3472045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental polishing apparatus
Assignee: ALICE E NELSEN
•
Filing: 1967-10-04
•
Granted: 1969-10-14
•
Expires: 1987-10-04
Abstract
No abstract record available.
Inventors
- 👤 Alice E Nelsen
- 👤 Robert J Nelsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:57
CPC Classifications
A; A61; A61C; A61C17/00; A61C17/005; F; F16; F16C; F16C1/00; F16C1/02; F16C1/06; F16C1/08; F16C2316/00; F16C2316/10; F16C2316/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1402981A
Cited
US1791847A
Cited
US2496412A
Cited
US2656559A
Cited
US2821092A
Cited
US3043120A
Cited
US3149480A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |