US2920503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for attaining synchronism between independently driven endless chains or other members
Assignee: Geo W King Ltd
•
Filing: 1957-03-20
•
Granted: 1960-01-12
•
Expires: 1977-03-20
Abstract
No abstract record available.
Inventors
- 👤 Burrows Arthur Thomas Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:34
CPC Classifications
F; F16; F16H; F16H37/00; F16H2700/00; F16H2700/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CH152996A
Cited
US2263371A
Cited
US2512008A
Cited
US2392226A
Cited
US2808922A
Cited
US2781616A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |