US2907031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilising devices
Assignee: Smiths America Corp
•
Filing: 1953-05-28
•
Granted: 1959-09-29
•
Expires: 1973-05-28
Abstract
No abstract record available.
Inventors
- 👤 Meredith Frederick William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:03
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2715776A
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US2407275A
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US2569560A
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US2484819A
Cited
US2475746A
Cited
US2707400A
Cited
US2795379A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |