US4369678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool and operator head for a tool-operated lock
Assignee: The Eastern Co
•
Filing: 1980-10-22
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Granted: 1983-01-25
•
Expires: 2000-10-22
Abstract
No abstract record available.
Inventors
- 👤 Donald L Cooper
- 👤 Gordon G Zeidman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:54
CPC Classifications
B; B25; B25B; B25B13/00; B25B13/48; B25B13/485; B25B15/00; B25B15/001; F; F16; F16B; F16B23/00; F16B23/0061
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) | 1986-01-24 | 1986-07-26 | 1987-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-24 | 1990-07-26 | 1991-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-24 | 1994-07-26 | 1995-01-25 | $7700.00 | Window Closed / Lapsed |