US3050779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic plasticizing heater
Assignee: Individual
•
Filing: 1960-08-08
•
Granted: 1962-08-28
•
Expires: 1980-08-08
Abstract
No abstract record available.
Inventors
- 👤 Francis S Farley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:44
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/20; B29C45/23; B29C45/231; B29C45/72; B29C45/74
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2480838A
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US2482243A
Cited
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Cited
GB702317A
Cited
DE1042226B
Cited
US2840649A
Cited
US2919469A
Cited
US2940123A
Cited
US2979772A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |