US2467108A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable-speed gear
Assignee: Napier Turbochargers Ltd
•
Filing: 1946-11-29
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Granted: 1949-04-12
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Expires: 1966-11-29
Abstract
No abstract record available.
Inventors
- 👤 Barlow Benjamin William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:28
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/02; F16H2708/00; F16H2708/02; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19037; Y10T74/19219; Y10T74/19228; Y10T74/19251; Y10T74/19256; Y10T74/19274
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) | 1952-04-11 | 1952-10-11 | 1953-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-11 | 1956-10-11 | 1957-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-11 | 1960-10-11 | 1961-04-12 | $7700.00 | Window Closed / Lapsed |