US2882367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Relay
Assignee: Guardian Electric Manufacturing Co
•
Filing: 1955-05-31
•
Granted: 1959-04-14
•
Expires: 1975-05-31
Abstract
No abstract record available.
Inventors
- 👤 Edward G Baker
- 👤 Theodore J Obszarny
- 👤 Schmidt John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:35
CPC Classifications
H; H01; H01H; H01H51/00; H01H51/02; H01H51/04; H01H51/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1356501A
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GB158994A
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US2353756A
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GB572686A
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US2480802A
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US2590996A
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US2635155A
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US2671863A
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GB708985A
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US2775666A
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US2805301A
Cited
US2767280A
Cited
US2718568A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |