US2940701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Personnel escape equipment
Assignee: North American Aviation Corp
•
Filing: 1958-06-16
•
Granted: 1960-06-14
•
Expires: 1978-06-16
Abstract
No abstract record available.
Inventors
- 👤 Donald W Beem
- 👤 Robert L Carter
- 👤 Frank H Wallace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:27
CPC Classifications
B; B64; B64D; B64D25/00; B64D25/02; B64D10/00; B64D2010/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2528532A
Cited
US2836382A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |