US3406428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mold construction for differential pressure plastic molding machines
Assignee: Brown Machine Company of Michigan Inc
•
Filing: 1966-04-11
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Granted: 1968-10-22
•
Expires: 1986-04-11
Abstract
No abstract record available.
Inventors
- 👤 Gaylord W Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:45
CPC Classifications
B; B29; B29C; B29C33/00; B29C33/30; B29C33/305; B29C33/0022; B29C33/02; B29C33/04; B29C33/306; B29C51/00; B29C51/26; B29C51/30; B29C2791/00; B29C2791/004; B29C2791/006; B29C51/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A MOLD CONSTRUCTION COMPRISING: SUPPORT PLATE MEANS; CIRCULANT PASSAGE MEANS IN SAID SUPPORT PLATE MEANS INCLUDING AN INTAKE PORTION AND AN EXIT PORTION; FEMALE MOLD BLOCK MEANS CAVITY MEANS THEREIN CONNECTED WITH SAID SUPPORT PLATE MEANS; AND PASSAGE MEANS FORMED IN SAID SUPPORT PLATE MEANS AND FEMALE MOLD BLOCK MEANS EXTENDING FROM SAID INTKE PORTION INTO SAID FEMALE MOLD BLOCK MEANS AND BACK TO SAID EXIT PORTION.
Claim 2
Dependent Claim
67 words
A MOLD CONSTRUCTION COMPRISING: SUPPORT PLATE MEANS; CIRCULANT PASSAGE MEANS IN SAID SUPPORT PLATE MEANS INCLUDING AN INTAKE PORTION AND AN EXIT PORTION; FEMALE MOLD BLOCK MEANS CAVITY MEANS THEREIN CONNECTED WITH SAID SUPPORT PLATE MEANS; AND PASSAGE MEANS FORMED IN SAID SUPPORT PLATE MEANS AND FEMALE MOLD BLOCK MEANS EXTENDING FROM SAID INTKE PORTION INTO SAID FEMALE MOLD BLOCK MEANS AND BACK TO SAID EXIT PORTION.
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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) | 1971-10-22 | 1972-04-22 | 1972-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-22 | 1976-04-22 | 1976-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-22 | 1980-04-22 | 1980-10-22 | $7700.00 | Window Closed / Lapsed |