US2167707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sliding door equipment
Assignee: Chicago Railway Equipment Co
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Filing: 1936-12-23
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Granted: 1939-08-01
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Expires: 1956-12-23
Abstract
No abstract record available.
Inventors
- 👤 Edwin G Busse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:50
CPC Classifications
E; E05; E05D; E05D15/00; E05D15/06; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/1006; Y10T292/1007; Y10T292/1013; Y10T292/71
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) | 1942-07-31 | 1943-01-30 | 1943-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-07-31 | 1947-01-30 | 1947-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-07-31 | 1951-01-30 | 1951-08-01 | $7700.00 | Window Closed / Lapsed |