Patent US2598196A successfully refreshed from Google Patents.
US2598196A
Expired / Lapsed
US
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Variable-speed signaling crossing gate
Assignee: Individual
•
Filing: 1948-04-06
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Granted: 1952-05-27
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Expires: 1968-04-06
Abstract
No abstract record available.
Inventors
- 👤 Joseph H Staley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:25
CPC Classifications
B; B61; B61L; B61L29/00; B61L29/24; B61L29/243; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86389; Y10T137/86405; Y10T74/00; Y10T74/21; Y10T74/2101
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1686430A
Cited
US1886435A
Cited
US1938192A
Cited
US2007481A
Cited
US1993533A
Cited
US2068254A
Cited
US2137196A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-27 | 1955-11-26 | 1956-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-27 | 1959-11-26 | 1960-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-27 | 1963-11-26 | 1964-05-27 | $7700.00 | Window Closed / Lapsed |