US2680994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suction holding device
Assignee: Boeing Co
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Filing: 1951-10-22
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Granted: 1954-06-15
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Expires: 1971-10-22
Abstract
No abstract record available.
Inventors
- 👤 Kenneth G Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:10
CPC Classifications
B; B25; B25B; B25B11/00; B25B11/005; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30868; Y10T409/309016
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) | 1957-06-14 | 1957-12-14 | 1958-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-14 | 1961-12-14 | 1962-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-14 | 1965-12-14 | 1966-06-15 | $7700.00 | Window Closed / Lapsed |