US2439965A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drill press
Assignee: Individual
•
Filing: 1943-01-09
•
Granted: 1948-04-20
•
Expires: 1963-01-09
Abstract
No abstract record available.
Inventors
- 👤 John A Cupler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:59
CPC Classifications
B; B23; B23B; B23B41/00; Y; Y10; Y10T; Y10T408/00; Y10T408/55; Y10T408/561; Y10T408/5614; Y10T408/91; Y10T408/92
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US323A
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US255079A
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US353124A
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US1434564A
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US652533A
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GB190006733A
Cited
US695980A
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US802060A
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US892459A
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US1061622A
Cited
US1576509A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-20 | 1951-10-20 | 1952-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-20 | 1955-10-20 | 1956-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-20 | 1959-10-20 | 1960-04-20 | $7700.00 | Window Closed / Lapsed |