US1877700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air brake
Assignee: Individual
•
Filing: 1931-06-25
•
Granted: 1932-09-13
•
Expires: 1951-06-25
Abstract
No abstract record available.
Inventors
- 👤 Silvene Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:28
CPC Classifications
B; B60; B60T; B60T15/00; B60T15/02; B60T15/18; B60T15/184; B60T15/185; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/8667
Claims Analysis
Total Claims: 0
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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) | 1935-09-13 | 1936-03-14 | 1936-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-09-13 | 1940-03-14 | 1940-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-09-13 | 1944-03-14 | 1944-09-13 | $7700.00 | Window Closed / Lapsed |