US2613243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety ground clamp
Assignee: Individual
•
Filing: 1948-11-05
•
Granted: 1952-10-07
•
Expires: 1968-11-05
Abstract
No abstract record available.
Inventors
- 👤 Oscar W S Frear
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:39
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/58; H01R4/64; H01R11/00; H01R11/11; H01R11/26; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44009; Y10T24/44291; Y10T24/44496; Y10T24/44513; Y10T24/4453
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1633098A
Cited
US1669337A
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US1739090A
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US1720003A
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US1860262A
Cited
DE635238C
Cited
US2114940A
Cited
US2144140A
Cited
US2394204A
Cited
US2461687A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-07 | 1956-04-07 | 1956-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-07 | 1960-04-07 | 1960-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-07 | 1964-04-07 | 1964-10-07 | $7700.00 | Window Closed / Lapsed |