Patent US3084389A successfully refreshed from Google Patents.
US3084389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic molding process and apparatus
Assignee: Phillips Petroleum Co
•
Filing: 1960-07-25
•
Granted: 1963-04-09
•
Expires: 1980-07-25
Abstract
No abstract record available.
Inventors
- 👤 Doyle Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:54
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
References Cited (Backward Citations)
USRE23910E
Cited
US2320115A
Cited
US2349177A
Cited
US2517701A
Cited
US2708772A
Cited
US2989780A
Cited
US2836852A
Cited
US2832094A
Cited
US2814074A
Cited
US2955321A
Cited
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 |