US2498368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for curing acrylic base denture material
Assignee: Harrison Dental Co Inc
•
Filing: 1946-03-22
•
Granted: 1950-02-21
•
Expires: 1966-03-22
Abstract
No abstract record available.
Inventors
- 👤 William M Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:31
CPC Classifications
A; A61; A61C; A61C13/00; A61C13/01; A61C13/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
59 words
A PROCESS FOR CURING HEAT HARDENABLE ACRYLIC BASE DENTURE MATERIAL INCLUDING THE STEPS OF SUPPORTING A VAPOR PERMEABLE PLASTER MOLD CONTAINING SAID MATERIAL IN AN ENCLOSED SPACE ABOVE A BODY OF WATER WITHIN THE SPACE; AND HEATING SAID WATER TO, AND MAINTAINING IT AT AT, A TEMPERATURE SUFFICIENT TO SURROUND SAID MOLD WITH HOT WATER VAPOR AT CURING TEMPERATURE.
References Cited (Backward Citations)
US1585348A
Cited
GB484343A
Cited
US2234993A
Cited
US2225857A
Cited
US2395241A
Cited
US2385143A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-20 | 1953-08-22 | 1954-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-20 | 1957-08-22 | 1958-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-20 | 1961-08-22 | 1962-02-21 | $7700.00 | Window Closed / Lapsed |