Patent US2296520A successfully refreshed from Google Patents.
US2296520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor vehicle
Assignee: Packard Motor Car Co
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Filing: 1940-12-06
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Granted: 1942-09-22
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Expires: 1960-12-06
Abstract
No abstract record available.
Inventors
- 👤 Walter R Griswold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:13
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/44; F16H3/46; F16H3/60; F16H3/48; F16H3/52; F16H3/54; F16H61/00; F16H61/02; F16H61/0202; F16H2716/00; F16H2716/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-09-21 | 1946-03-23 | 1946-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-09-21 | 1950-03-23 | 1950-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-09-21 | 1954-03-23 | 1954-09-22 | $7700.00 | Window Closed / Lapsed |