Patent US951927A successfully refreshed from Google Patents.
Patent US1809186A successfully refreshed from Google Patents.
US1809186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiator cap
Assignee: STANT MACHINE Co
•
Filing: 1928-11-28
•
Granted: 1931-06-09
•
Expires: 1948-11-28
Abstract
No abstract record available.
Inventors
- 👤 Kyle E Stant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:20
CPC Classifications
F; F01; F01P; F01P11/00; F01P11/02; F01P11/0204; F01P11/0209; F01P11/0214; F01P2011/0219; Y; Y10; Y10S; Y10S220/00; Y10S220/32
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) | 1934-06-08 | 1934-12-08 | 1935-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-06-08 | 1938-12-08 | 1939-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-06-08 | 1942-12-08 | 1943-06-09 | $7700.00 | Window Closed / Lapsed |