Patent US2570765A successfully refreshed from Google Patents.
US2570765A
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Method of fitting tumbler pins
Assignee: HOLLYMADE HARDWARE Manufacturing Co
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Filing: 1947-11-18
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Granted: 1951-10-09
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Expires: 1967-11-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert C Cerf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:13
CPC Classifications
E; E05; E05B; E05B17/00; E05B17/0004; Y; Y10; Y10S; Y10S451/00; Y10S451/913; Y10S451/914; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49861; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/7486; Y10T70/7508; Y10T70/7559; Y10T70/7588; Y10T70/7593; Y10T70/7599; Y10T70/7605
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1204410A
Cited
US1231720A
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US1593513A
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US1677432A
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US1860712A
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US1979939A
Cited
US1953535A
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US2345189A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-08 | 1955-04-09 | 1955-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-08 | 1959-04-09 | 1959-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-08 | 1963-04-09 | 1963-10-09 | $7700.00 | Window Closed / Lapsed |