US2491147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making denture base parts and applying artificial teeth thereto
Assignee: AUSTENAL LAB Inc
•
Filing: 1946-11-22
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Granted: 1949-12-13
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Expires: 1966-11-22
Abstract
No abstract record available.
Inventors
- 👤 Eric H Zahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:16
CPC Classifications
A; A61; A61C; A61C13/00; A61C13/10; A61C13/1003; A61C13/1006; A61C13/01; A61C13/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49567
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1742430A
Cited
US2057341A
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US2369758A
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US2380468A
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US2409783A
Cited
US2402259A
Cited
US2428094A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-12 | 1953-06-13 | 1953-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-12 | 1957-06-13 | 1957-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-12 | 1961-06-13 | 1961-12-13 | $7700.00 | Window Closed / Lapsed |