Patent US2441234A successfully refreshed from Google Patents.
US2441234A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass spring for securing electrical units
Assignee: Individual
•
Filing: 1945-05-23
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Granted: 1948-05-11
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Expires: 1965-05-23
Abstract
No abstract record available.
Inventors
- 👤 Dillon Harry Robertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:38
CPC Classifications
H; H01; H01R; H01R33/00; H01R33/975; H05; H05K; H05K7/00; H05K7/02; H05K7/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190827543A
Cited
US1982319A
Cited
US2032493A
Cited
US2021276A
Cited
US1984817A
Cited
GB459284A
Cited
US2380936A
Cited
US2395872A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-05-11 | 1951-11-10 | 1952-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-11 | 1955-11-10 | 1956-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-11 | 1959-11-10 | 1960-05-11 | $7700.00 | Window Closed / Lapsed |