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US2855672A
Expired / Lapsed
US
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Dental apparatus
Assignee: HANAU ENGINEERING Co Inc
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Filing: 1956-09-27
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Granted: 1958-10-14
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Expires: 1976-09-27
Abstract
No abstract record available.
Inventors
- 👤 Edmond J Franwick
- 👤 Richard A Beu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:07
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/0007; A61C1/02; A61C1/05; A61C1/052
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE483400C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |