Patent US3341897A successfully refreshed from Google Patents.
US3341897A
Expired / Lapsed
US
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Injection mold
Assignee: Lion Fat and Oil Co Ltd
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Filing: 1965-05-17
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Granted: 1967-09-19
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Expires: 1985-05-17
Abstract
No abstract record available.
Inventors
- 👤 Susuki Rinnosuke
- 👤 Hoshi Hiroshi
- 👤 Sugesawa Hiroshi
- 👤 Kaneko Takeshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:47
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/26; B29C45/2628; Y; Y10; Y10S; Y10S425/00; Y10S425/005
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
140 words
A MOLD COMPRISING A BLOCK WHICH DEFINES, AT LEAST IN PART, A PRODUCT CAVITY, SAID BLOCK BEING PROVIDED WITH A PLURALITY OF HOLES DIVERGINING INTO THE PRODUCT CAVITY, A PROJECTION OF SAID BLOCK PROVIDED WITH GROOVES COAXIALLY ALIGNED WITH SAID HOLES, A PLURALITY OF SEGMENTS SPACEDLY ARRANGED AROUND SAID PROJECTION AND DEFINING GROOVES OPPOSED TO THE GROOVES IN THE PROJECTION AND COAXIAL WITH THE HOLES IN THE BLOCK, PIN MEMBERS SLIDABLE IN THE GROOVES OF AND SANDWICHED BETWEEN THE PROJECTION AND SEGMENTS AND INSERTABLE INTO AND WITHDRAWABLE FROM THE HOLES IN THE BLOCK FOR ENTERING AND LEAVING THE PRODUCT CAVITY, AND MEANS FOR DISPLACING THE SEGMENTS ALONG WITH SAID PIN MEMBERS ALONG AND TRANSVERSELY RELATIVE TO SAID PROJECTION SUCH THAT THE PIN MEMBERS ARE DISPLACED AXIALLY RELATIVE TO THE HOLES IN THE BLOCK TO ENTER AND LEAVE THE PRODUCT CAVITY.
References Cited (Backward Citations)
US2366475A
Cited
US2578719A
Cited
US2558027A
Cited
US2783502A
Cited
US2874414A
Cited
US3049759A
Cited
US3183552A
Cited
US3266098A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |