Patent US2219215A successfully refreshed from Google Patents.
US2219215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic braking apparatus
Assignee: AMON H CARSON
•
Filing: 1938-04-11
•
Granted: 1940-10-22
•
Expires: 1958-04-11
Abstract
No abstract record available.
Inventors
- 👤 Rexford O Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:10
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/02; B; B66; B66D; B66D5/00; B66D5/02; B66D5/04; F; F16; F16H; F16H47/00; F16H47/06; F16H47/08
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) | 1943-10-22 | 1944-04-22 | 1944-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-10-22 | 1948-04-22 | 1948-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-10-22 | 1952-04-22 | 1952-10-22 | $7700.00 | Window Closed / Lapsed |