US3439794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for conveying and distributing articles in a conefined region
Assignee: Republic Steel Corp
•
Filing: 1966-12-30
•
Granted: 1969-04-22
•
Expires: 1986-12-30
Abstract
No abstract record available.
Inventors
- 👤 Francis W Park
- 👤 Arthur K Blough
- 👤 Stanley Darwin Noll
- 👤 William F Delfeld
- 👤 George I Kraus
- 👤 Robert Kraus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:15
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/28; C21C5/42; C21C5/44; C21C5/441
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1020746A
Cited
US1272655A
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US2121565A
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US2858763A
Cited
US3106299A
Cited
US3033389A
Cited
US3285390A
Cited
US3339710A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-21 | 1972-10-21 | 1973-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-21 | 1976-10-21 | 1977-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-21 | 1980-10-21 | 1981-04-22 | $7700.00 | Window Closed / Lapsed |