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US1334486A
Expired / Lapsed
US
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Transmission mechanism
Assignee: DUPLEX ENGINE GOVERNOR Co
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Filing: 1918-06-26
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Granted: 1920-03-23
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Expires: 1938-06-26
Abstract
No abstract record available.
Inventors
- 👤 Douglas Theodore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:35
CPC Classifications
F; F16; F16H; F16H1/00; F16H1/02; F16H1/04
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) | 1923-03-23 | 1923-09-22 | 1924-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-03-23 | 1927-09-22 | 1928-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-03-23 | 1931-09-22 | 1932-03-23 | $7700.00 | Window Closed / Lapsed |