US2428608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic dielectric composition and shielded spark plug terminal construction comprising same
Assignee: Dow Chemical Co
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Filing: 1942-11-02
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Granted: 1947-10-07
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Expires: 1962-11-02
Abstract
No abstract record available.
Inventors
- 👤 Shailer L Bass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:27
CPC Classifications
H; H04; H04B; H04B15/00; H04B15/02; H04B15/025; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/46; H01T; H01T13/00; H01T13/02; H01T13/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1760583A
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US1958580A
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US2274231A
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US2188007A
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US2258220A
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US2351564A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-06 | 1951-04-07 | 1951-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-06 | 1955-04-07 | 1955-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-06 | 1959-04-07 | 1959-10-07 | $7700.00 | Window Closed / Lapsed |