US3276111A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making a complex sintered powdered material article
Assignee: Federal Mogul Bower Bearings Inc
•
Filing: 1963-10-18
•
Granted: 1966-10-04
•
Expires: 1983-10-18
Abstract
No abstract record available.
Inventors
- 👤 Haller John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:34
CPC Classifications
B; B22; B22F; B22F5/00; B22F5/10; B22F3/00; B22F3/02; B22F3/03; B22F3/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A PROCESS OF MAKING A COMPLEX SINTERED POWDERED MATERIAL ARTICLE, COMPRISING CONFINING A MASS OF PARTICLES OF POWDERED MATERIAL IN A MOLD CAVITY OF SIMILAR SHAPE AND CROSS-SECTIONAL SIZE TO THE ARTICLE TO BE PRODUCED THEREFROM BUT OF GREATER AXIAL ELONGATION, HEATING THE THUS-CONFINED PARTICLES TO A TEMPERATURE AND FOR A TIME PERIOD WELL BELOW THE SINTERING TEMPERATURE AND TIME PERIOD THEREOF SUFFICIENT TO EFFECT ADHESION OF THE PARTICLES TO ONE ANOTHER INTO A SELF-SUSTAINING BUT FRAGILE AND EASILY PULVERIZABLE PREFORM, TRANSFERRING THE PREFORM FROM THE MOLD CAVITY TO A DIE CAVITY, COMPRESSING THE PREFORM IN THE DIE CAVITY INTO PULVERIZATION OF THE PREFORM AND DISTRIBUTION OF ITS COMPONENT PARTICLES THROUGHOUT THE DIE CAVITY,
Claim 2
Dependent Claim
114 words
A PROCESS OF MAKING A COMPLEX SINTERED POWDERED MATERIAL ARTICLE, COMPRISING CONFINING A MASS OF PARTICLES OF POWDERED MATERIAL IN A MOLD CAVITY OF SIMILAR SHAPE AND CROSS-SECTIONAL SIZE TO THE ARTICLE TO BE PRODUCED THEREFROM BUT OF GREATER AXIAL ELONGATION, HEATING THE THUS-CONFINED PARTICLES TO A TEMPERATURE AND FOR A TIME PERIOD WELL BELOW THE SINTERING TEMPERATURE AND TIME PERIOD THEREOF SUFFICIENT TO EFFECT ADHESION OF THE PARTICLES TO ONE ANOTHER INTO A SELF-SUSTAINING BUT FRAGILE AND EASILY PULVERIZABLE PREFORM, TRANSFERRING THE PREFORM FROM THE MOLD CAVITY TO A DIE CAVITY, COMPRESSING THE PREFORM IN THE DIE CAVITY INTO PULVERIZATION OF THE PREFORM AND DISTRIBUTION OF ITS COMPONENT PARTICLES THROUGHOUT THE DIE CAVITY,
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) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |