Patent US2525973A successfully refreshed from Google Patents.
US2525973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for feeding solid material
Assignee: Honeywell International Inc
•
Filing: 1946-11-19
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Granted: 1950-10-17
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Expires: 1966-11-19
Abstract
No abstract record available.
Inventors
- 👤 Sundstrom Carl
- 👤 Clarence T Patterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:30
CPC Classifications
C; C21; C21C; C21C1/00; C21C1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1646728A
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FR685589A
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US2089992A
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US2260302A
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US2268535A
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US2331938A
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US2352749A
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US2404884A
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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) | 1953-10-16 | 1954-04-17 | 1954-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-16 | 1958-04-17 | 1958-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-16 | 1962-04-17 | 1962-10-17 | $7700.00 | Window Closed / Lapsed |