US2547513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lock mechanism for insulated filing cabinets
Assignee: Shaw Walker Co
•
Filing: 1946-06-15
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Granted: 1951-04-03
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Expires: 1966-06-15
Abstract
No abstract record available.
Inventors
- 👤 Carl W Wikman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:23
CPC Classifications
E; E05; E05B; E05B65/00; E05B65/46; E05B65/462; E05B17/00; E05B17/0075; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0848; Y10T292/0849; Y10T292/0859; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5128; Y10T70/60; Y10T70/625; Y10T70/65
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US681155A
Cited
US1000268A
Cited
US1109106A
Cited
US1904912A
Cited
US2116370A
Cited
US2333511A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-02 | 1954-10-02 | 1955-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-02 | 1958-10-02 | 1959-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-02 | 1962-10-02 | 1963-04-03 | $7700.00 | Window Closed / Lapsed |