US2771306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power-actuated laterally and vertically adjustable draft means
Assignee: Individual
•
Filing: 1952-04-28
•
Granted: 1956-11-20
•
Expires: 1972-04-28
Abstract
No abstract record available.
Inventors
- 👤 Charles S Ash
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:23
CPC Classifications
A; A01; A01B; A01B69/00; A01B69/003; A01B21/00; A01B21/08; Y; Y10; Y10S; Y10S56/00; Y10S56/11; Y10S56/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2640708A
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US2600016A
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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) | 1959-11-20 | 1960-05-21 | 1960-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-20 | 1964-05-21 | 1964-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-20 | 1968-05-21 | 1968-11-20 | $7700.00 | Window Closed / Lapsed |