US2199276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intake manifold for internal combustion engines
Assignee: F A H BARKEIJ
•
Filing: 1938-02-21
•
Granted: 1940-04-30
•
Expires: 1958-02-21
Abstract
No abstract record available.
Inventors
- 👤 Jean A H Barkeij
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:17
CPC Classifications
F; F02; F02M; F02M35/00; F02M35/10; F02M35/104; F02M35/1047; F02F; F02F1/00; F02F1/24; F02F1/42; F02F1/4214; F02M35/10006; F02M35/10026; F02M35/10045; F02M35/116; F02B; F02B75/00; F02B75/16; F02B75/18; F02B2075/1804; F02B2075/1832; F02B75/20; F02B75/22; F02F2001/244; F02F2001/245
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1943-04-30 | 1943-10-30 | 1944-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-04-30 | 1947-10-30 | 1948-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-04-30 | 1951-10-30 | 1952-04-30 | $7700.00 | Window Closed / Lapsed |