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US2418593A
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US
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Crane weight and radius indicator
Assignee: MARTIN
•
Filing: 1943-10-26
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Granted: 1947-04-08
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Expires: 1963-10-26
Abstract
No abstract record available.
Inventors
- 👤 Walter R Martin
- 👤 Harold J Blythe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:50
CPC Classifications
B; B66; B66C; B66C23/00; B66C23/88; B66C23/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US623779A
Cited
US1266587A
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US1795405A
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US2015957A
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US2030529A
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GB375711A
Cited
DE626206C
Cited
US2022844A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-04-07 | 1950-10-07 | 1951-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-07 | 1954-10-07 | 1955-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-07 | 1958-10-07 | 1959-04-08 | $7700.00 | Window Closed / Lapsed |