US3451584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil filler breather cap
Assignee: Continental Research and Development Ltd
•
Filing: 1967-05-19
•
Granted: 1969-06-24
•
Expires: 1987-05-19
Abstract
No abstract record available.
Inventors
- 👤 Ben Degaetano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:06
CPC Classifications
F; F01; F01M; F01M13/00; F01M13/0033; B; B01; B01D; B01D36/00; B01D36/001; F01M11/00; F01M11/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2675886A
Cited
US2784801A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |