US2455334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Constant volume expansible brake line
Assignee: Glenn L Martin Co
•
Filing: 1944-12-30
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Granted: 1948-11-30
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Expires: 1964-12-30
Abstract
No abstract record available.
Inventors
- 👤 Thomas C Hill
- 👤 William A Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:12
CPC Classifications
B; B64; B64C; B64C25/00; B64C25/32; B64C25/42; B64C25/44; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86268; Y10T137/9029; Y10T137/9138
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US836989A
Cited
US2246565A
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US2328898A
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US2286566A
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US2377196A
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US2417249A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-30 | 1952-05-31 | 1952-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-30 | 1956-05-31 | 1956-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-30 | 1960-05-31 | 1960-11-30 | $7700.00 | Window Closed / Lapsed |