US3468306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic oral hygiene apparatus
Assignee: R AND H MOLDING Inc
•
Filing: 1966-12-09
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Granted: 1969-09-23
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Expires: 1986-12-09
Abstract
No abstract record available.
Inventors
- 👤 Charles J Heitzman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:56
CPC Classifications
B; B05; B05B; B05B3/00; B05B3/02; B05B3/04; B05B3/06; A; A61; A61C; A61C1/00; A61C1/0061; A61C1/0084; A61C17/00; A61C17/02; A61C17/032
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2595491A
Cited
US3213471A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-22 | 1973-03-24 | 1973-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-22 | 1977-03-24 | 1977-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-22 | 1981-03-24 | 1981-09-23 | $7700.00 | Window Closed / Lapsed |