Patent US1226753A successfully refreshed from Google Patents.
US1226753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbureter.
Assignee: Individual
•
Filing: 1916-04-07
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Granted: 1917-05-22
•
Expires: 1936-04-07
Abstract
No abstract record available.
Inventors
- 👤 Benjamin P Critchlow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:02
CPC Classifications
F; F02; F02M; F02M7/00; F02M7/23; F02M7/24; F02M7/245; B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/231; B01F23/23105; B01F23/2312; B01F23/23123
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) | 1920-05-21 | 1920-11-20 | 1921-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-05-21 | 1924-11-20 | 1925-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-05-21 | 1928-11-20 | 1929-05-22 | $7700.00 | Window Closed / Lapsed |