US2686480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welded carside
Assignee: Youngstown Steel Door Co
•
Filing: 1950-05-23
•
Granted: 1954-08-17
•
Expires: 1970-05-23
Abstract
No abstract record available.
Inventors
- 👤 Carl E Johansson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:28
CPC Classifications
B; B61; B61D; B61D17/00; B61D17/04; B61D17/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1231916A
Cited
US2114754A
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US2098183A
Cited
US2243113A
Cited
US2265178A
Cited
US2223667A
Cited
US2311188A
Cited
US2313106A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-16 | 1958-02-15 | 1958-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-16 | 1962-02-15 | 1962-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-16 | 1966-02-15 | 1966-08-17 | $7700.00 | Window Closed / Lapsed |