US3142957A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine supercharging apparatus
Assignee: Individual
•
Filing: 1962-02-19
•
Granted: 1964-08-04
•
Expires: 1982-02-19
Abstract
No abstract record available.
Inventors
- 👤 Raymond E Roesling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:55
CPC Classifications
F; F02; F02B; F02B37/00; F02B37/12; F02B37/18; F02B33/00; F02B33/44; F02B33/446; F02D; F02D23/00; F02M; F02M31/00; F02M31/02; F02M31/04; F02M31/042; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1941642A
Cited
US2024202A
Cited
US2355759A
Cited
GB575989A
Cited
US2579643A
Cited
US2622391A
Cited
US2645409A
Cited
US2896598A
Cited
US2897801A
Cited
US3049865A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |