US3214505A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for compression molding of members
Assignee: AO Smith Corp
•
Filing: 1961-10-18
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Granted: 1965-10-26
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Expires: 1981-10-18
Abstract
No abstract record available.
Inventors
- 👤 Pierkowski Harry
- 👤 George A Stein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:55
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/001; B29D23/003; B29D23/008; B29C; B29C43/00; B29C43/02; B29C43/027; B29C43/32; B29C43/36; B29C43/361; B29C2043/3615; B29C2043/3621; B29C2043/3665; B29K; B29K2105/00; B29K2105/06; B29L; B29L2031/00; B29L2031/24; B29L2031/246; Y; Y10; Y10S; Y10S425/00; Y10S425/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
THE METHOD OF MOLDING TUBULAR MEMBERS HAVING AT LEAST ONE PAIR OF INTERSECTING PASSAGEWAYS AND FROM A MATERIAL HAVING A LARGE BULK FACTOR, COMPRISING THE STEPS OF PREFORMING THE MATERIAL INTO A REDUCED GENERAL CONFIGURATION OF THE MOLDED MEMBER, DISPOSING THE PERFORMED MATERIAL INTO A MOLD CAVITY CONFORMING TO THE CONFIGURATION OF THE MEMBER, AND SIMULTANEOUSLY FORCING A PLURALITY OF MANDREL MEMBERS INTO THE MOLD CAVITY IN ACCORDANCE WITH THE ARRANGEMENT OF THE PASSAGEWAYS TO FORCE THE PREFORMED MATERIAL BETWEEN THE PISTONS AND THE WALL DEFINING THE CAVITY AND COMPLETE THE MEMBER.
Claim 2
Independent Claim
92 words
THE METHOD OF MOLDING TUBULAR MEMBERS HAVING AT LEAST ONE PAIR OF INTERSECTING PASSAGEWAYS AND FROM A MATERIAL HAVING A LARGE BULK FACTOR, COMPRISING THE STEPS OF PREFORMING THE MATERIAL INTO A REDUCED GENERAL CONFIGURATION OF THE MOLDED MEMBER, DISPOSING THE PERFORMED MATERIAL INTO A MOLD CAVITY CONFORMING TO THE CONFIGURATION OF THE MEMBER, AND SIMULTANEOUSLY FORCING A PLURALITY OF MANDREL MEMBERS INTO THE MOLD CAVITY IN ACCORDANCE WITH THE ARRANGEMENT OF THE PASSAGEWAYS TO FORCE THE PREFORMED MATERIAL BETWEEN THE PISTONS AND THE WALL DEFINING THE CAVITY AND COMPLETE THE MEMBER.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |