US1304162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air-pressure governor for air-brake systems
Assignee: —
•
Filing: —
•
Granted: 1919-05-20
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Expires: 1936-05-20
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:32
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/14; G05D16/16; G05D16/163; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7758; Y10T137/7762; Y10T137/7764; Y10T137/7768
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) | 1922-05-19 | 1922-11-18 | 1923-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1926-05-19 | 1926-11-18 | 1927-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1930-05-19 | 1930-11-18 | 1931-05-20 | $7700.00 | Window Closed / Lapsed |