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US2670538A
Expired / Lapsed
US
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Dental articulator
Assignee: Individual
•
Filing: 1952-08-25
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Granted: 1954-03-02
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Expires: 1972-08-25
Abstract
No abstract record available.
Inventors
- 👤 Harold J Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:07
CPC Classifications
A; A61; A61C; A61C11/00; A61C11/02; A61C11/003; A61C11/06; A61C11/08; A61C11/088
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1228667A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-01 | 1957-08-31 | 1958-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-01 | 1961-08-31 | 1962-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-01 | 1965-08-31 | 1966-03-02 | $7700.00 | Window Closed / Lapsed |