US1636157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Car and air coupling mechanism
Assignee: Tomlinson Coupler Co
•
Filing: 1924-09-25
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Granted: 1927-07-19
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Expires: 1944-09-25
Abstract
No abstract record available.
Inventors
- 👤 Charles H Tomlinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:30
CPC Classifications
B; B61; B61G; B61G3/00; B61G3/02
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) | 1930-07-18 | 1931-01-17 | 1931-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-07-18 | 1935-01-17 | 1935-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-07-18 | 1939-01-17 | 1939-07-19 | $7700.00 | Window Closed / Lapsed |