Patent US2544590A successfully refreshed from Google Patents.
US2544590A
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US
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Bicycle lock
Assignee: Emhart Industries Inc
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Filing: 1947-07-05
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Granted: 1951-03-06
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Expires: 1967-07-05
Abstract
No abstract record available.
Inventors
- 👤 Louis M Dyson
- 👤 John G Root
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:59
CPC Classifications
B; B62; B62H; B62H5/00; B62H5/02; B62H5/06; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5611; Y10T70/5646; Y10T70/565; Y10T70/5668; Y10T70/5872
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) | 1954-03-05 | 1954-09-04 | 1955-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-05 | 1958-09-04 | 1959-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-05 | 1962-09-04 | 1963-03-06 | $7700.00 | Window Closed / Lapsed |