US2889168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Parachute armed disconnect
Assignee: Individual
•
Filing: 1956-01-11
•
Granted: 1959-06-02
•
Expires: 1976-01-11
Abstract
No abstract record available.
Inventors
- 👤 Armin E Engelhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:27
CPC Classifications
B; B64; B64D; B64D17/00; B64D17/22; B64D17/38; B64D17/383; Y; Y10; Y10S; Y10S24/00; Y10S24/30; Y10S24/38; Y10S24/42; Y10T; Y10T24/00; Y10T24/45; Y10T24/45005; Y10T24/4501; Y10T24/45225; Y10T24/45602; Y10T24/45723; Y10T24/45743
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-01 | 1962-12-01 | 1963-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-01 | 1966-12-01 | 1967-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-01 | 1970-12-01 | 1971-06-02 | $7700.00 | Window Closed / Lapsed |