US2621370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Faller bar synchronizing and cross-drive
Assignee: Warner and Swasey Co
•
Filing: 1949-10-04
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Granted: 1952-12-16
•
Expires: 1969-10-04
Abstract
No abstract record available.
Inventors
- 👤 Jr Richard G Denton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:27
CPC Classifications
D; D01; D01H; D01H5/00; D01H5/02; D01H5/04; D01H5/06; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/1956
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-16 | 1956-06-16 | 1956-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-16 | 1960-06-16 | 1960-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-16 | 1964-06-16 | 1964-12-16 | $7700.00 | Window Closed / Lapsed |