Patent US2950460A successfully refreshed from Google Patents.
Patent US3357104A successfully refreshed from Google Patents.
US3357104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental impression housing
Assignee: Individual
•
Filing: 1965-05-21
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Granted: 1967-12-12
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Expires: 1985-05-21
Abstract
No abstract record available.
Inventors
- 👤 Louis L Greene
- 👤 Norman A Greene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:45
CPC Classifications
A; A61; A61C; A61C9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A DENTAL IMPRESSION HOUSING COMPRISING A BODY HAVING SIDE WALLS AND AN OPEN BOTTOM, AND COMPRESSIBLE BELLOWS FORMING AN UPWARD EXTENSION OF SAID BODY, SAID BELLOWS BEING MADE OF A THIN READILY BENDABLE MATERIAL, THE BELLOWS BEING DOWNWARDLY COMPRESSIBLE TO FORCE IMPRESSION MATERIAL INTO THE BODY PORTION.
Claim 2
Dependent Claim
47 words
A DENTAL IMPRESSION HOUSING COMPRISING A BODY HAVING SIDE WALLS AND AN OPEN BOTTOM, AND COMPRESSIBLE BELLOWS FORMING AN UPWARD EXTENSION OF SAID BODY, SAID BELLOWS BEING MADE OF A THIN READILY BENDABLE MATERIAL, THE BELLOWS BEING DOWNWARDLY COMPRESSIBLE TO FORCE IMPRESSION MATERIAL INTO THE BODY PORTION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |