US2847829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power braking system
Assignee: GLADDEN PRODUCTS Corp
•
Filing: 1955-11-21
•
Granted: 1958-08-19
•
Expires: 1975-11-21
Abstract
No abstract record available.
Inventors
- 👤 John N Gladden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:58
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/12; B60T13/16; B60T13/161; B60T13/165; Y; Y10; Y10S; Y10S60/00; Y10S60/907
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1659203A
Cited
FR656845A
Cited
US2241374A
Cited
US2343698A
Cited
US2359949A
Cited
US2409175A
Cited
GB640542A
Cited
US2680350A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |