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US2748720A
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Assignee: Athey Products Corp
•
Filing: 1952-12-06
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Granted: 1956-06-05
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Expires: 1972-12-06
Abstract
No abstract record available.
Inventors
- 👤 Robert W Kling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:01
CPC Classifications
E; E01; E01H; E01H8/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US523208A
Cited
US1469464A
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US1865807A
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US2208128A
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US2505501A
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US2467619A
Cited
US2374312A
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US2408555A
Cited
US2639022A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |