US2547746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansion joint seal
Assignee: —
•
Filing: —
•
Granted: 1951-04-03
•
Expires: 1968-04-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:29
CPC Classifications
F; F16; F16L; F16L35/00; F01; F01N; F01N13/00; F01N13/18; F01N13/1805; F01N13/1811; F01N13/1816; F16L27/00; F16L27/10; F16L27/107; F16L27/11; F16L51/00; F16L51/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1923124A
Cited
US2207146A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-02 | 1954-10-02 | 1955-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-02 | 1958-10-02 | 1959-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-02 | 1962-10-02 | 1963-04-03 | $7700.00 | Window Closed / Lapsed |