US3457645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental evacuator
Assignee: TORIT Manufacturing CO
•
Filing: 1967-03-22
•
Granted: 1969-07-29
•
Expires: 1987-03-22
Abstract
No abstract record available.
Inventors
- 👤 Rolf G Swanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:39
CPC Classifications
A; A61; A61C; A61C17/00; A61C17/06; A61C17/12; A61C17/125
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE605203C
Cited
GB480068A
Cited
NL45353C
Cited
US2864166A
Cited
US2821021A
Cited
US3078579A
Cited
US3138873A
Cited
US3142298A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-28 | 1973-01-27 | 1973-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-28 | 1977-01-27 | 1977-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-28 | 1981-01-27 | 1981-07-29 | $7700.00 | Window Closed / Lapsed |