Patent DE401211C successfully refreshed from Google Patents.
Patent US2761996A successfully refreshed from Google Patents.
US2761996A
Expired / Lapsed
US
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Ignition apparatus
Assignee: —
•
Filing: —
•
Granted: 1956-09-04
•
Expires: 1973-09-04
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:16
CPC Classifications
G; G09; G09F; G09F13/00; G09F13/26; F; F02; F02P; F02P15/00; F02P15/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1330021A
Cited
US2230508A
Cited
US993375A
Cited
US1444836A
Cited
US1734599A
Cited
US2430379A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-04 | 1960-03-05 | 1960-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-04 | 1964-03-05 | 1964-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-04 | 1968-03-05 | 1968-09-04 | $7700.00 | Window Closed / Lapsed |