US2970667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self propelled aerial platform and hydraulic control system therefor
Assignee: Individual
•
Filing: 1958-06-18
•
Granted: 1961-02-07
•
Expires: 1978-06-18
Abstract
No abstract record available.
Inventors
- 👤 Willis M Bercaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:11
CPC Classifications
B; B66; B66F; B66F11/00; B66F11/04; B66F11/044
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2060220A
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US2450152A
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US2541292A
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US2616768A
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US2627560A
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US2786723A
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US2754087A
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US2818126A
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US2954092A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-07 | 1964-08-08 | 1965-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-07 | 1968-08-08 | 1969-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-07 | 1972-08-08 | 1973-02-07 | $7700.00 | Window Closed / Lapsed |