US2595285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical relay and solenoid mechanism
Assignee: John B. Pierce Laboratory
•
Filing: 1947-02-04
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Granted: 1952-05-06
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Expires: 1967-02-04
Abstract
No abstract record available.
Inventors
- 👤 Joseph F O'brien
- 👤 John B Cataldo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:33
CPC Classifications
H; H01; H01H; H01H51/00; H01H51/02; H01H51/04; H01H51/06; H01H51/08; H01H50/00; H01H50/16; H01H50/18; H01H50/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1257613A
Cited
US1571401A
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GB403992A
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US2335888A
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US2359048A
Cited
US2387372A
Cited
US2415448A
Cited
US2417438A
Cited
US2515258A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-06 | 1955-11-05 | 1956-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-06 | 1959-11-05 | 1960-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-06 | 1963-11-05 | 1964-05-06 | $7700.00 | Window Closed / Lapsed |