US2724463A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety line shock absorber
Assignee: MSA Safety Inc
•
Filing: 1953-07-02
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Granted: 1955-11-22
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Expires: 1973-07-02
Abstract
No abstract record available.
Inventors
- 👤 Earl M Becker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:36
CPC Classifications
A; A47; A47L; A47L3/00; A47L3/04; F; F16; F16F; F16F1/00; F16F1/36; F16F1/42; F16F1/44
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) | 1958-11-21 | 1959-05-23 | 1959-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-21 | 1963-05-23 | 1963-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-21 | 1967-05-23 | 1967-11-22 | $7700.00 | Window Closed / Lapsed |