Patent US2174789A successfully refreshed from Google Patents.
Patent US3390558A successfully refreshed from Google Patents.
US3390558A
Expired / Lapsed
US
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High security lock
Assignee: Schlage Lock Co LLC
•
Filing: 1965-08-09
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Granted: 1968-07-02
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Expires: 1985-08-09
Abstract
No abstract record available.
Inventors
- 👤 John A Tornoe
- 👤 Robert A Marotto
- 👤 Hegedus Denes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:16
CPC Classifications
E; E05; E05B; E05B59/00; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0834; Y10T292/0836; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5226; Y10T70/5246; Y10T70/5296; Y10T70/5319; Y10T70/5372; Y10T70/5385; Y10T70/5389; Y10T70/5611; Y10T70/5757; Y10T70/5765; Y10T70/5805; Y10T70/5819; Y10T70/5823; Y10T70/5827
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1478322A
Cited
US1686406A
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US1708593A
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US2029991A
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US2303624A
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US2638770A
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US2729000A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-02 | 1972-01-01 | 1972-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-02 | 1976-01-01 | 1976-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-02 | 1980-01-01 | 1980-07-02 | $7700.00 | Window Closed / Lapsed |