Patent US2857893A successfully refreshed from Google Patents.
US2857893A
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US
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Induction system
Assignee: Motors Liquidation Co
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Filing: 1957-06-10
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Granted: 1958-10-28
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Expires: 1977-06-10
Abstract
No abstract record available.
Inventors
- 👤 Wallace A Lobdell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:33
CPC Classifications
F; F02; F02B; F02B27/00; F02B27/005; F02B27/006; F02B75/00; F02B75/16; F02B75/18; F02B75/22; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1802544A
Cited
US1977200A
Cited
US2119879A
Cited
GB518518A
Cited
US2382244A
Cited
US2791205A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-27 | 1962-04-28 | 1962-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-27 | 1966-04-28 | 1966-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-27 | 1970-04-28 | 1970-10-28 | $7700.00 | Window Closed / Lapsed |