US2924487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for conveying bulk materials
Assignee: FR Hesser Maschinenfabrik AG
•
Filing: 1958-07-15
•
Granted: 1960-02-09
•
Expires: 1978-07-15
Abstract
No abstract record available.
Inventors
- 👤 Stambera Adolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:43
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/54; B65D88/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1570795A
Cited
US1759983A
Cited
FR689191A
Cited
DE734696C
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US2665035A
Cited
US2527466A
Cited
GB709265A
Cited
US2708602A
Cited
GB729799A
Cited
US2828163A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-08 | 1963-08-10 | 1964-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-08 | 1967-08-10 | 1968-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-08 | 1971-08-10 | 1972-02-09 | $7700.00 | Window Closed / Lapsed |