Patent US1953535A successfully refreshed from Google Patents.
US1953535A
Expired / Lapsed
US
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Method of making locks
Assignee: Individual
•
Filing: 1931-11-19
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Granted: 1934-04-03
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Expires: 1951-11-19
Abstract
No abstract record available.
Inventors
- 👤 Edwin P Hurd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:10
CPC Classifications
E; E05; E05B; E05B27/00; E05B17/00; E05B17/0004; E05B17/0054; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49789; Y10T29/4979; Y10T29/49826; Y10T29/49861; Y10T428/00; Y10T428/12; Y10T428/12201; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/7486; Y10T70/7508; Y10T70/7559; Y10T70/7667; Y10T70/7689; Y10T70/7701; Y10T70/7915; Y10T70/7949
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1937-04-02 | 1937-10-02 | 1938-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-04-02 | 1941-10-02 | 1942-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-04-02 | 1945-10-02 | 1946-04-03 | $7700.00 | Window Closed / Lapsed |