US1528090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emergency exit for passenger-carrying bodies
Assignee: Individual
•
Filing: 1924-04-18
•
Granted: 1925-03-03
•
Expires: 1944-04-18
Abstract
No abstract record available.
Inventors
- 👤 George W Tracy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:33
CPC Classifications
B; B60; B60J; B60J9/00; B60J9/02; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0834; Y10T292/0836; Y10T292/0841; Y10T292/0908
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) | 1928-03-02 | 1928-09-01 | 1929-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-03-02 | 1932-09-01 | 1933-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-03-02 | 1936-09-01 | 1937-03-03 | $7700.00 | Window Closed / Lapsed |