Patent US1382285A successfully refreshed from Google Patents.
US1382285A
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US
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Engine attachment
Assignee: Individual
•
Filing: 1920-09-03
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Granted: 1921-06-21
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Expires: 1940-09-03
Abstract
No abstract record available.
Inventors
- 👤 Ralph W Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:40
CPC Classifications
F; F02; F02M; F02M29/00; F02M29/04; F02M26/00; F02M26/13; F02M26/17; F02M26/19
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) | 1924-06-20 | 1924-12-20 | 1925-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-06-20 | 1928-12-20 | 1929-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-06-20 | 1932-12-20 | 1933-06-21 | $7700.00 | Window Closed / Lapsed |