US3011595A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety brake system
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1955-06-22
•
Granted: 1961-12-05
•
Expires: 1975-06-22
Abstract
No abstract record available.
Inventors
- 👤 John P Heiss
- 👤 Richard L Gates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:12
CPC Classifications
B; B60; B60T; B60T17/00; B60T17/18; B60T17/22; B60T11/00; B60T11/10; B60T11/24; B60T17/226
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2353304A
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US2459938A
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US2610238A
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US2693588A
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US2694191A
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US2779013A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-04 | 1965-06-05 | 1965-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-04 | 1969-06-05 | 1969-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-04 | 1973-06-05 | 1973-12-05 | $7700.00 | Window Closed / Lapsed |