US2715283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary dryers
Assignee: Edw Renneburg & Sons Co
•
Filing: 1953-03-20
•
Granted: 1955-08-16
•
Expires: 1973-03-20
Abstract
No abstract record available.
Inventors
- 👤 Halldorsson Gisli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:12
CPC Classifications
F; F26; F26B; F26B11/00; F26B11/02; F26B11/04; F26B11/044
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1988677A
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US1981235A
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US2096049A
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US2143505A
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US2132972A
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US2341101A
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US2388902A
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US2461134A
Cited
US2504156A
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US2506739A
Cited
US2618865A
Cited
US2609186A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-15 | 1959-02-14 | 1959-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-15 | 1963-02-14 | 1963-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-15 | 1967-02-14 | 1967-08-16 | $7700.00 | Window Closed / Lapsed |