Patent US3975569A successfully refreshed from Google Patents.
Patent US2723148A successfully refreshed from Google Patents.
US2723148A
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Sliding door lock
Assignee: KENNATRACK Corp
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Filing: 1953-01-05
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Granted: 1955-11-08
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Expires: 1973-01-05
Abstract
No abstract record available.
Inventors
- 👤 Jr Leonard E Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:06
CPC Classifications
E; E05; E05B; E05B65/00; E05B65/08; E05B65/087; E05B63/00; E05B63/0056; Y; Y10; Y10S; Y10S292/00; Y10S292/38; Y10S292/46; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/1014; Y10T292/1022; Y10T292/1028; Y10T292/42; Y10T292/432; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5173; Y10T70/5177; Y10T70/5181
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) | 1958-11-07 | 1959-05-09 | 1959-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-07 | 1963-05-09 | 1963-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-07 | 1967-05-09 | 1967-11-08 | $7700.00 | Window Closed / Lapsed |