Patent US2067598A successfully refreshed from Google Patents.
US2067598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansion rail joint
Assignee: RAMAPO AJAX Corp
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Filing: 1935-07-29
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Granted: 1937-01-12
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Expires: 1955-07-29
Abstract
No abstract record available.
Inventors
- 👤 Clarke Herbert Secor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:28
CPC Classifications
E; E01; E01B; E01B11/00; E01B11/02; E01B11/20; E01B11/22; E01B11/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1940-01-12 | 1940-07-13 | 1941-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-01-12 | 1944-07-13 | 1945-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-01-12 | 1948-07-13 | 1949-01-12 | $7700.00 | Window Closed / Lapsed |