US3183289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a positive face vacuum forming mold
Assignee: ThyssenKrupp Budd Co
•
Filing: 1961-12-15
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Granted: 1965-05-11
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Expires: 1981-12-15
Abstract
No abstract record available.
Inventors
- 👤 Jr George W Leavesley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:36
CPC Classifications
B; B29; B29C; B29C51/00; B29C51/26; B29C51/30; B29C51/36; B29C51/365; B22; B22C; B22C9/00; B22C9/02; B22C9/03; Y; Y10; Y10S; Y10S425/00; Y10S425/048
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
THE METHOD OF MAKING A POSITIVE FACE VACUUM FORMING MOLD FROM A NEGATIVE PATTERN CONSISTING ESSENTIALLY OF THE STEPS: PLACING SAID NEGATIVE PATTERN IN A LOWER FRAME BOX WITH ITS FRONT FACE EXPOSED, COATING THE FRONT FACE OF SAID NEGATIVE PATTERN WITH A PARTING AGENT, PLACING AN UPPER FRAME BOX ON SAID LOWER FRAME BOX, SPRAYING A PLURALITY OF LAYERS OF POROUS DEPOSITED SPRAY METAL ON SAID PATTERN TO FORM A POROUS SHELL ON THE FRONT FACE OF SAID PATTERN AND SIMULTANEOUSLY BONDING SAID POROUS SHELL TO SAID UPPER FRAME BOX, COVERING A SMALL AREA OF THE REAR SURFACE OF SAID POROUS SHELL WITH A HOLLOW OUTLET FIXTURE,
Claim 2
Independent Claim
108 words
THE METHOD OF MAKING A POSITIVE FACE VACUUM FORMING MOLD FROM A NEGATIVE PATTERN CONSISTING ESSENTIALLY OF THE STEPS: PLACING SAID NEGATIVE PATTERN IN A LOWER FRAME BOX WITH ITS FRONT FACE EXPOSED, COATING THE FRONT FACE OF SAID NEGATIVE PATTERN WITH A PARTING AGENT, PLACING AN UPPER FRAME BOX ON SAID LOWER FRAME BOX, SPRAYING A PLURALITY OF LAYERS OF POROUS DEPOSITED SPRAY METAL ON SAID PATTERN TO FORM A POROUS SHELL ON THE FRONT FACE OF SAID PATTERN AND SIMULTANEOUSLY BONDING SAID POROUS SHELL TO SAID UPPER FRAME BOX, COVERING A SMALL AREA OF THE REAR SURFACE OF SAID POROUS SHELL WITH A HOLLOW OUTLET FIXTURE,
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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) | 1968-05-10 | 1968-11-09 | 1969-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-10 | 1972-11-09 | 1973-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-10 | 1976-11-09 | 1977-05-11 | $7700.00 | Window Closed / Lapsed |