Patent US4217484A successfully refreshed from Google Patents.
Patent US1506756A successfully refreshed from Google Patents.
US1506756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite molded structure
Assignee: Westinghouse Electric Corp
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Filing: 1918-06-28
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Granted: 1924-09-02
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Expires: 1938-06-28
Abstract
No abstract record available.
Inventors
- 👤 Willard H Kempton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:42
CPC Classifications
H; H01; H01R; H01R39/00; H01R39/02; H01R39/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1927-09-02 | 1928-03-03 | 1928-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-09-02 | 1932-03-03 | 1932-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-09-02 | 1936-03-03 | 1936-09-02 | $7700.00 | Window Closed / Lapsed |