US1659659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manifold construction
Assignee: PERFECTION ENGINEERING Co
•
Filing: 1924-03-17
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Granted: 1928-02-21
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Expires: 1944-03-17
Abstract
No abstract record available.
Inventors
- 👤 Charles L Mccuen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:06
CPC Classifications
F; F02; F02M; F02M35/00; F02M35/10; F02M35/104; F02M35/112; F02M35/10242; F02M35/10262; F02M63/00; F02M2700/00; F02M2700/05; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
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) | 1931-02-20 | 1931-08-22 | 1932-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-02-20 | 1935-08-22 | 1936-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-02-20 | 1939-08-22 | 1940-02-21 | $7700.00 | Window Closed / Lapsed |