US2506145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Picker stick governor mechanism
Assignee: Draper Corp
•
Filing: 1948-02-28
•
Granted: 1950-05-02
•
Expires: 1968-02-28
Abstract
No abstract record available.
Inventors
- 👤 Willard C French
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:46
CPC Classifications
D; D03; D03D; D03D49/00; D03D49/24; D03D49/26; D03D49/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1311053A
Cited
US1312960A
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US744862A
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US739526A
Cited
US779902A
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US825049A
Cited
US1428739A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-01 | 1953-10-31 | 1954-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-01 | 1957-10-31 | 1958-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-01 | 1961-10-31 | 1962-05-02 | $7700.00 | Window Closed / Lapsed |