US2889441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preheater for molding material
Assignee: FJ Stokes Corp
•
Filing: 1958-01-14
•
Granted: 1959-06-02
•
Expires: 1978-01-14
Abstract
No abstract record available.
Inventors
- 👤 Charles E Mcminn
- 👤 Gordon L Fuller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:41
CPC Classifications
B; B29; B29B; B29B13/00; B29B13/02; B29B13/021; Y; Y10; Y10S; Y10S264/00; Y10S264/65
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2713697A
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US2749424A
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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) | 1962-06-01 | 1962-12-01 | 1963-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-01 | 1966-12-01 | 1967-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-01 | 1970-12-01 | 1971-06-02 | $7700.00 | Window Closed / Lapsed |