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US2679413A
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Coupling device
Assignee: Up Right Inc
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Filing: 1949-07-01
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Granted: 1954-05-25
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Expires: 1969-07-01
Abstract
No abstract record available.
Inventors
- 👤 Wallace J S Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:45
CPC Classifications
E; E04; E04G; E04G7/00; E04G7/02; E04G7/06; E04G7/12; E04G7/14; Y; Y10; Y10T; Y10T403/00; Y10T403/71; Y10T403/7105
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1783735A
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US2088890A
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US2152891A
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US2194883A
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GB573189A
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US2402570A
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US2511035A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-24 | 1957-11-23 | 1958-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-24 | 1961-11-23 | 1962-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-24 | 1965-11-23 | 1966-05-25 | $7700.00 | Window Closed / Lapsed |