US2434138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Load indicator for cranes
Assignee: Individual
•
Filing: 1946-03-11
•
Granted: 1948-01-06
•
Expires: 1966-03-11
Abstract
No abstract record available.
Inventors
- 👤 Cyril S Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:27
CPC Classifications
G; G01; G01G; G01G23/00; G01G23/18; G01G23/36; G01G23/362; B; B66; B66D; B66D1/00; B66D1/54; B66D1/58; G01G19/00; G01G19/14; G01G19/18; G01G3/00; G01G3/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US532868A
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US1081843A
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US1238337A
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US1298175A
Cited
GB138707A
Cited
US1581383A
Cited
FR521975A
Cited
US1890679A
Cited
US1890539A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-01-05 | 1951-07-07 | 1952-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-05 | 1955-07-07 | 1956-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-05 | 1959-07-07 | 1960-01-06 | $7700.00 | Window Closed / Lapsed |