US3397303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveying belt with integral electric heater and sheet member holddown means
Assignee: Bell and Howell Co
•
Filing: 1965-10-23
•
Granted: 1968-08-13
•
Expires: 1985-10-23
Abstract
No abstract record available.
Inventors
- 👤 Edwin L Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:36
CPC Classifications
H; H05; H05B; H05B3/00; G; G03; G03G; G03G15/00; G03G15/20; G03G15/2003; G03G15/2014; H05B3/20; H05B3/34; H05B3/342; H05B2203/00; H05B2203/011; H05B2203/013; H05B2203/014; H05B2203/015; H05B2203/017
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3123700A
Cited
US1401303A
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US1741882A
Cited
US1910868A
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US2526650A
Cited
US2711781A
Cited
US2972669A
Cited
US3236205A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-13 | 1972-02-12 | 1972-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-13 | 1976-02-12 | 1976-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-13 | 1980-02-12 | 1980-08-13 | $7700.00 | Window Closed / Lapsed |