US3464728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jam resistant door lock
Assignee: EMERGENCY PRODUCTS Corp 25 EASTMANS RD PARSIPPANY NJ
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Filing: 1967-07-21
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Granted: 1969-09-02
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Expires: 1987-07-21
Abstract
No abstract record available.
Inventors
- 👤 Frank G Ruckel
- 👤 David Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:52
CPC Classifications
E; E05; E05B; E05B65/00; E05B65/10; E05B65/1046; E05B65/106; E05B65/1073; E05B17/00; E05B17/007; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0908; Y10T292/68; Y10T70/00; Y10T70/80; Y10T70/8919
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-01 | 1973-03-03 | 1973-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-01 | 1977-03-03 | 1977-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-01 | 1981-03-03 | 1981-09-02 | $7700.00 | Window Closed / Lapsed |