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Patent US2920450A successfully refreshed from Google Patents.
US2920450A
Expired / Lapsed
US
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Igniter
Assignee: Individual
•
Filing: 1954-09-17
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Granted: 1960-01-12
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Expires: 1974-09-17
Abstract
No abstract record available.
Inventors
- 👤 Clifford E Seglem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:22
CPC Classifications
F; F23; F23Q; F23Q7/00; F23Q7/06; F23Q7/08; F02; F02C; F02C7/00; F02C7/26; F02C7/264
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |