US2547370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rope lock
Assignee: Individual
•
Filing: 1948-11-02
•
Granted: 1951-04-03
•
Expires: 1968-11-02
Abstract
No abstract record available.
Inventors
- 👤 Charles A Boyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:02
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/28; E06B9/30; E06B9/32; E06B9/324; F; F16; F16G; F16G11/00; F16G11/10; F16G11/105; F16G11/106; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/3936; Y10T24/3938; Y10T24/394; Y10T24/3944
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US88057A
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US119740A
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US497900A
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US524015A
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US688618A
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US702165A
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US1167295A
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US1243104A
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US1399182A
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US1710697A
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US1692640A
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US1779430A
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US1853313A
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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) | 1954-04-02 | 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 |