Patent US2468976A successfully refreshed from Google Patents.
US2468976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inverted v-type engine
Assignee: Old Carco LLC
•
Filing: 1942-06-11
•
Granted: 1949-05-03
•
Expires: 1962-06-11
Abstract
No abstract record available.
Inventors
- 👤 Alexander G Herreshoff
- 👤 Lamb Wade
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:28
CPC Classifications
F; F16; F16C; F16C35/00; F16C35/02; F02; F02B; F02B75/00; F02B75/16; F02B75/18; F02B75/22; F02F; F02F7/00; F02F7/0043; F02F7/0053; F02B2075/1804; F02B2075/1864; F02B2275/00; F02B2275/20; F02B2275/30
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1311196A
Cited
US1312555A
Cited
US1318209A
Cited
US1172640A
Cited
US1173105A
Cited
US1286345A
Cited
US1226109A
Cited
US1386489A
Cited
US1370692A
Cited
US1383367A
Cited
GB221104A
Cited
US1634017A
Cited
US1878224A
Cited
US1916292A
Cited
US1671400A
Cited
US2019558A
Cited
US1906781A
Cited
US2056056A
Cited
US2254439A
Cited
US2241630A
Cited
US2346463A
Cited
US2334731A
Cited
GB560287A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-02 | 1952-11-01 | 1953-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-02 | 1956-11-01 | 1957-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-02 | 1960-11-01 | 1961-05-03 | $7700.00 | Window Closed / Lapsed |