US2540172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination lock
Assignee: Individual
•
Filing: 1946-03-13
•
Granted: 1951-02-06
•
Expires: 1966-03-13
Abstract
No abstract record available.
Inventors
- 👤 Steave S Nieratka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:07
CPC Classifications
E; E05; E05B; E05B37/00; E05B37/12; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5246; Y10T70/5296; Y10T70/5319; Y10T70/5336; Y10T70/70; Y10T70/7153; Y10T70/7181; Y10T70/7198; Y10T70/7237; Y10T70/726
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US26569A
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US530551A
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USRE16833E
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US648226A
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US1032631A
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US1062513A
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US1189155A
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US1218084A
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US1566829A
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US2319931A
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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) | 1954-02-05 | 1954-08-07 | 1955-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-05 | 1958-08-07 | 1959-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-05 | 1962-08-07 | 1963-02-06 | $7700.00 | Window Closed / Lapsed |