US3084389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic molding process and apparatus
Assignee: Phillips Petroleum Co
•
Filing: 1960-07-25
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Granted: 1963-04-09
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Expires: 1980-07-25
Abstract
No abstract record available.
Inventors
- 👤 Doyle Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:17
CPC Classifications
B; B29; B29C; B29C51/00; B29C51/26; B29C51/42; B29C51/427; Y; Y10; Y10S; Y10S264/00; Y10S264/78; Y10S425/00; Y10S425/009
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
24 words
APPARATUS FOR VACUUM FORMING A THERMOPLASTIC SHEET ON A MOLD AND SUBSEQUENTLY COOLING SAID SHEET COMPRISING, IN COMBINATION, MEANS FOR HOLDING SAID SHEET IN
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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) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |