US2524722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suspension arch
Assignee: Laclede-Christy Co
•
Filing: 1946-12-12
•
Granted: 1950-10-03
•
Expires: 1966-12-12
Abstract
No abstract record available.
Inventors
- 👤 Herman W Weber
- 👤 Daniel W Williamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:24
CPC Classifications
F; F27; F27D; F27D1/00; F27D1/02; F27D1/021
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1230441A
Cited
US1443487A
Cited
US1528256A
Cited
US1534281A
Cited
US1629668A
Cited
GB313175A
Cited
US2119779A
Cited
FR874856A
Cited
US2387663A
Cited
US2446766A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-02 | 1954-04-03 | 1954-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-02 | 1958-04-03 | 1958-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-02 | 1962-04-03 | 1962-10-03 | $7700.00 | Window Closed / Lapsed |