US3406667A
Expired / Lapsed
US
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Ignition amplifying apparatus
Assignee: ALVIN W EVANS
•
Filing: 1966-09-29
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Granted: 1968-10-22
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Expires: 1986-09-29
Abstract
No abstract record available.
Inventors
- 👤 Alvin W Evans
- 👤 Beichel Rudi
- 👤 Morghen Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:31
CPC Classifications
F; F02; F02B; F02B19/00; F02B19/10; F02B19/1004; F02B19/1014; F02B19/1019; F02B19/1023; F02B19/1028; F02B19/1033; H; H01; H01T; H01T13/00; H01T13/54; F02P; F02P13/00; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
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) | 1971-10-22 | 1972-04-22 | 1972-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-22 | 1976-04-22 | 1976-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-22 | 1980-04-22 | 1980-10-22 | $7700.00 | Window Closed / Lapsed |