US2436582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable-speed control system
Assignee: Lear Inc
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Filing: 1943-08-28
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Granted: 1948-02-24
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Expires: 1963-08-28
Abstract
No abstract record available.
Inventors
- 👤 William P Lear
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:55
CPC Classifications
H; H02; H02P; H02P25/00; H02P25/16; H02P25/18; F; F16; F16H; F16H59/00; F16H59/02; F16H59/04; F16H59/06
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) | 1951-02-23 | 1951-08-25 | 1952-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-02-23 | 1955-08-25 | 1956-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-02-23 | 1959-08-25 | 1960-02-24 | $7700.00 | Window Closed / Lapsed |