US2867384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and article of manufacture for supporting rails
Assignee: Commonwealth Engineering Company of Ohio
•
Filing: 1954-10-01
•
Granted: 1959-01-06
•
Expires: 1974-10-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry A Toulmin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:04
CPC Classifications
E; E01; E01B; E01B9/00; E01B9/68; E01B9/681; E01B9/683
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US388240A
Cited
US1190154A
Cited
US1780396A
Cited
US2124235A
Cited
US2291611A
Cited
US2337497A
Cited
US2421602A
Cited
US2397023A
Cited
US2656116A
Cited
US2609991A
Cited
US2553010A
Cited
US2600843A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-05 | 1962-07-07 | 1963-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-05 | 1966-07-07 | 1967-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-05 | 1970-07-07 | 1971-01-06 | $7700.00 | Window Closed / Lapsed |