US3390458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing for dental impressions
Assignee: JOSEPH M LYTTON
•
Filing: 1965-05-10
•
Granted: 1968-07-02
•
Expires: 1985-05-10
Abstract
No abstract record available.
Inventors
- 👤 Joseph M Lytton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:16
CPC Classifications
A; A61; A61C; A61C9/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1248242A
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US1257947A
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US1764244A
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US1812008A
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US2529429A
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US2958946A
Cited
US3058216A
Cited
US3304608A
Cited
US3151393A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-02 | 1972-01-01 | 1972-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-02 | 1976-01-01 | 1976-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-02 | 1980-01-01 | 1980-07-02 | $7700.00 | Window Closed / Lapsed |