Patent US1172473A successfully refreshed from Google Patents.
US1172473A
Expired / Lapsed
US
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Internal-combustion engine.
Assignee: Individual
•
Filing: 1910-11-18
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Granted: 1916-02-22
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Expires: 1930-11-18
Abstract
No abstract record available.
Inventors
- 👤 Herbert Mccornack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:44
CPC Classifications
F; F02; F02B; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025
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) | 1919-02-21 | 1919-08-23 | 1920-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1923-02-21 | 1923-08-23 | 1924-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1927-02-21 | 1927-08-23 | 1928-02-22 | $7700.00 | Window Closed / Lapsed |