Patent US2933552A successfully refreshed from Google Patents.
US2933552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite glass seal
Assignee: Federal Mogul Ignition LLC
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Filing: 1955-06-06
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Granted: 1960-04-19
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Expires: 1975-06-06
Abstract
No abstract record available.
Inventors
- 👤 Harry G Schurecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:48
CPC Classifications
H; H01; H01T; H01T13/00; H01T13/20; H01T13/34; G; G01; G01N; G01N27/00; G01N27/26; G01N27/403; G01N27/406; G01N27/407; G01N27/4078
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US732812A
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US1848312A
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US2227770A
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US2317305A
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US2321840A
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US2367445A
Cited
US2463577A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |