Patent US3413831A successfully refreshed from Google Patents.
US3413831A
Expired / Lapsed
US
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Rotary cylinder lock
Assignee: LOCK AND ENGINEERING DIVISION
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Filing: 1967-12-18
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Granted: 1968-12-03
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Expires: 1987-12-18
Abstract
No abstract record available.
Inventors
- 👤 Crepinsek Alois
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:02
CPC Classifications
E; E05; E05B; E05B19/00; E05B19/0017; E05B19/0023; E05B19/0041; E05B19/0052; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/7486; Y10T70/7508; Y10T70/7559; Y10T70/7565; Y10T70/7588; Y10T70/7593; Y10T70/7599; Y10T70/7605; Y10T70/7667; Y10T70/7672; Y10T70/7684; Y10T70/7689; Y10T70/7701; Y10T70/778; Y10T70/7791; Y10T70/7842; Y10T70/7859; Y10T70/7864; Y10T70/7881
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-03 | 1972-06-03 | 1972-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-03 | 1976-06-03 | 1976-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-03 | 1980-06-03 | 1980-12-03 | $7700.00 | Window Closed / Lapsed |