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Patent US2530547A successfully refreshed from Google Patents.
US2530547A
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US
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Safety rail fastening
Assignee: Individual
•
Filing: 1945-06-29
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Granted: 1950-11-21
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Expires: 1965-06-29
Abstract
No abstract record available.
Inventors
- 👤 Snyder Jacob Rush
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:15
CPC Classifications
E; E01; E01B; E01B9/00; E01B9/02; E01B9/28; E01B9/30; E01B9/306
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1020096A
Cited
US2008946A
Cited
US2057963A
Cited
US2311299A
Cited
US2286755A
Cited
US2357498A
Cited
US2324135A
Cited
US2394373A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-20 | 1954-05-22 | 1954-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-20 | 1958-05-22 | 1958-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-20 | 1962-05-22 | 1962-11-21 | $7700.00 | Window Closed / Lapsed |