Patent US2652158A successfully refreshed from Google Patents.
US2652158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railway car construction
Assignee: Waugh Equipment Co
•
Filing: 1949-08-04
•
Granted: 1953-09-15
•
Expires: 1969-08-04
Abstract
No abstract record available.
Inventors
- 👤 Simonson Sigvard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:10
CPC Classifications
B; B61; B61G; B61G9/00; B61G9/12; B61G9/125
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US202881A
Cited
US1545806A
Cited
US1693196A
Cited
US1927268A
Cited
US1860548A
Cited
NL37874C
Cited
FR770789A
Cited
US2271607A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-14 | 1957-03-16 | 1957-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-14 | 1961-03-16 | 1961-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-14 | 1965-03-16 | 1965-09-15 | $7700.00 | Window Closed / Lapsed |