US2618957A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cylinder type lock with plural tumbler sets
Assignee: Individual
•
Filing: 1947-09-29
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Granted: 1952-11-25
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Expires: 1967-09-29
Abstract
No abstract record available.
Inventors
- 👤 Tonnessen Johanne Be Margrethe
- 👤 Tonnessen Lars
- 👤 Tonnessen Johan
- 👤 Jr Adolph Tonnessen
- 👤 Tonnessen Marthin
- 👤 Tonnessen Gerda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:59
CPC Classifications
E; E05; E05B; E05B27/00; E05B27/0032; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/7486; Y10T70/7508; Y10T70/7559; Y10T70/7565; Y10T70/7588; Y10T70/7593; Y10T70/7667; Y10T70/7689; Y10T70/7701
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) | 1955-11-25 | 1956-05-26 | 1956-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-25 | 1960-05-26 | 1960-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-25 | 1964-05-26 | 1964-11-25 | $7700.00 | Window Closed / Lapsed |