Patent US4844683A successfully refreshed from Google Patents.
Patent US2587360A successfully refreshed from Google Patents.
US2587360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internally ribbed manifold for multicylinder internal-combustion engines
Assignee: WISCONSIN MOTOR CORP
•
Filing: 1949-02-16
•
Granted: 1952-02-26
•
Expires: 1969-02-16
Abstract
No abstract record available.
Inventors
- 👤 Arthur F Milbrath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:05
CPC Classifications
F; F02; F02M; F02M1/00; F02B; F02B75/00; F02B75/16; F02B75/18; F02B75/22; F02M2700/00; F02M2700/43; F02M2700/4302; F02M2700/4392
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-25 | 1955-08-27 | 1956-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-25 | 1959-08-27 | 1960-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-25 | 1963-08-27 | 1964-02-26 | $7700.00 | Window Closed / Lapsed |