Patent US3004756A successfully refreshed from Google Patents.
US3004756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exit releasing system for passenger-carrying vehicles
Assignee: Individual
•
Filing: 1958-07-01
•
Granted: 1961-10-17
•
Expires: 1978-07-01
Abstract
No abstract record available.
Inventors
- 👤 James L Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:53
CPC Classifications
E; E05; E05B; E05B51/00; E05B51/02; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0834; Y10T292/0836
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1076051A
Cited
US1431986A
Cited
US1519121A
Cited
US1528090A
Cited
US1555174A
Cited
US1909377A
Cited
US1864468A
Cited
US2726893A
Cited
US2697003A
Cited
US2781870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-16 | 1965-04-17 | 1965-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-16 | 1969-04-17 | 1969-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-16 | 1973-04-17 | 1973-10-17 | $7700.00 | Window Closed / Lapsed |