Patent US2440928A successfully refreshed from Google Patents.
US2440928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring biased parking brake lever
Assignee: T E CHAMBERS
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Filing: 1947-08-08
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Granted: 1948-05-04
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Expires: 1967-08-08
Abstract
No abstract record available.
Inventors
- 👤 Frank P Bower
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:43
CPC Classifications
G; G05; G05G; G05G25/00; G05G2700/00; G05G2700/12; G05G2700/14; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18888; Y10T74/18896; Y10T74/20; Y10T74/20396; Y10T74/20576; Y10T74/20636; Y10T74/20672; Y10T74/20684
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) | 1951-05-04 | 1951-11-03 | 1952-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-04 | 1955-11-03 | 1956-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-04 | 1959-11-03 | 1960-05-04 | $7700.00 | Window Closed / Lapsed |