US3486142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic relays
Assignee: ZF International UK Ltd
•
Filing: 1967-12-28
•
Granted: 1969-12-23
•
Expires: 1987-12-28
Abstract
No abstract record available.
Inventors
- 👤 Philip Vernon Little
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:20
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/16; H01H50/18; H01H50/34; H01H51/00; H01H51/02; H01H51/04; H01H51/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2545835A
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US2585684A
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US2632071A
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US2856492A
Cited
US3036246A
Cited
US3106669A
Cited
US3085139A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |