Patent US2756289A successfully refreshed from Google Patents.
US2756289A
Expired / Lapsed
US
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Electrical collector systems
Assignee: Individual
•
Filing: 1952-07-28
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Granted: 1956-07-24
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Expires: 1972-07-28
Abstract
No abstract record available.
Inventors
- 👤 Ashton B Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:38
CPC Classifications
B; B60; B60L; B60L5/00; B60L5/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US27978A
Cited
US560098A
Cited
US917500A
Cited
US867021A
Cited
US1089957A
Cited
US2044886A
Cited
US2049403A
Cited
US2422132A
Cited
US2548986A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-24 | 1960-01-23 | 1960-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-24 | 1964-01-23 | 1964-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-24 | 1968-01-23 | 1968-07-24 | $7700.00 | Window Closed / Lapsed |