Patent US2981343A successfully refreshed from Google Patents.
US2981343A
Expired / Lapsed
US
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Implement mounting device
Assignee: Unisys Corp
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Filing: 1956-05-31
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Granted: 1961-04-25
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Expires: 1976-05-31
Abstract
No abstract record available.
Inventors
- 👤 Richard K Berky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:05
CPC Classifications
A; A01; A01D; A01D45/00; A01D45/02; A01D45/028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2736152A
Cited
US1738083A
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US2347871A
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US2376541A
Cited
US2500040A
Cited
US2491354A
Cited
US2748960A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |