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US1629664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal-combustion engine
Assignee: Motors Liquidation Co
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Filing: 1921-09-02
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Granted: 1927-05-24
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Expires: 1941-09-02
Abstract
No abstract record available.
Inventors
- 👤 Robert K Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:30
CPC Classifications
F; F02; F02F; F02F1/00; F02F1/24; F02F1/243; F02B; F02B75/00; F02B75/16; F02B75/18; F02B75/22; F02B2075/1804; F02B2075/1832; F02B2275/00; F02B2275/22
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) | 1930-05-23 | 1930-11-22 | 1931-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-05-23 | 1934-11-22 | 1935-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-05-23 | 1938-11-22 | 1939-05-24 | $7700.00 | Window Closed / Lapsed |