US2992533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure control mechanism
Assignee: Dunlop Rubber Co Ltd
•
Filing: 1956-06-06
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Granted: 1961-07-18
•
Expires: 1976-06-06
Abstract
No abstract record available.
Inventors
- 👤 Hodkinson Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:19
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/12; B60T13/16; B60T13/161; B60T13/165; B60T11/00; B60T11/10; B60T11/16; B60T11/165; B60T11/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1921590A
Cited
US2004078A
Cited
US2136318A
Cited
US2318756A
Cited
US2343698A
Cited
US2544042A
Cited
US2676465A
Cited
US2661597A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-17 | 1965-01-16 | 1965-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-17 | 1969-01-16 | 1969-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-17 | 1973-01-16 | 1973-07-18 | $7700.00 | Window Closed / Lapsed |