US2775797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking mechanism
Assignee: Individual
•
Filing: 1955-01-31
•
Granted: 1957-01-01
•
Expires: 1975-01-31
Abstract
No abstract record available.
Inventors
- 👤 Rosen Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:27
CPC Classifications
E; E05; E05F; E05F11/00; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0997
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US452098A
Cited
US528769A
Cited
US532935A
Cited
US1405829A
Cited
US1248785A
Cited
US2547315A
Cited
US2595016A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-01 | 1960-07-02 | 1961-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-01 | 1964-07-02 | 1965-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-01 | 1968-07-02 | 1969-01-01 | $7700.00 | Window Closed / Lapsed |