US1354789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support for electric-current-collector shoes
Assignee: WHITING FOUNDRY EQUIPMENT Co
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Filing: 1919-05-02
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Granted: 1920-10-05
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Expires: 1939-05-02
Abstract
No abstract record available.
Inventors
- 👤 Bradford H Whiting
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:38
CPC Classifications
B; B60; B60L; B60L5/00; B60L5/04; B60L5/045
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) | 1923-10-05 | 1924-04-05 | 1924-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-10-05 | 1928-04-05 | 1928-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-10-05 | 1932-04-05 | 1932-10-05 | $7700.00 | Window Closed / Lapsed |