US2723010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hill holder and safety brake
Assignee: Individual
•
Filing: 1952-10-23
•
Granted: 1955-11-08
•
Expires: 1972-10-23
Abstract
No abstract record available.
Inventors
- 👤 Stelmack Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:28
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/12; B60T13/16; F; F16; F16D; F16D57/00; F16D57/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2506543A
Cited
US1710032A
Cited
US2042539A
Cited
US2023533A
Cited
US2287301A
Cited
US2387716A
Cited
US2521593A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-07 | 1959-05-09 | 1959-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-07 | 1963-05-09 | 1963-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-07 | 1967-05-09 | 1967-11-08 | $7700.00 | Window Closed / Lapsed |